diff --git a/app/api/billets_absences.py b/app/api/billets_absences.py
index 7ed0f119..44e6b3a3 100644
--- a/app/api/billets_absences.py
+++ b/app/api/billets_absences.py
@@ -49,10 +49,7 @@ def billets_absence_create():
         return json_error(
             404, message="Paramètre manquant: etudid, abs_begin, abs_end requis"
         )
-    query = Identite.query.filter_by(etudid=etudid)
-    if g.scodoc_dept:
-        query = query.filter_by(dept_id=g.scodoc_dept_id)
-    etud = query.first_or_404()
+    etud = Identite.get_etud(etudid)
     billet = BilletAbsence(
         etudid=etud.id,
         abs_begin=abs_begin,
diff --git a/app/but/bulletin_but_xml_compat.py b/app/but/bulletin_but_xml_compat.py
index 74f5409c..0bb1b902 100644
--- a/app/but/bulletin_but_xml_compat.py
+++ b/app/but/bulletin_but_xml_compat.py
@@ -65,11 +65,10 @@ def bulletin_but_xml_compat(
     from app.scodoc import sco_bulletins
 
     log(
-        "bulletin_but_xml_compat( formsemestre_id=%s, etudid=%s )"
-        % (formsemestre_id, etudid)
+        f"bulletin_but_xml_compat( formsemestre_id={formsemestre_id}, etudid={etudid} )"
     )
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
-    etud: Identite = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     results = bulletin_but.ResultatsSemestreBUT(formsemestre)
     nb_inscrits = results.get_inscriptions_counts()[scu.INSCRIT]
     # etat_inscription = etud.inscription_etat(formsemestre.id)
diff --git a/app/but/jury_but_pv.py b/app/but/jury_but_pv.py
index ea9e66bb..e3119b27 100644
--- a/app/but/jury_but_pv.py
+++ b/app/but/jury_but_pv.py
@@ -46,7 +46,7 @@ def pvjury_page_but(formsemestre_id: int, fmt="html"):
     """Page récapitulant les décisions de jury BUT
     formsemestre peut être pair ou impair
     """
-    formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     assert formsemestre.formation.is_apc()
     title = "Procès-verbal de jury BUT"
     if fmt == "html":
@@ -65,7 +65,8 @@ def pvjury_page_but(formsemestre_id: int, fmt="html"):
         columns_ids=titles.keys(),
         html_caption=title,
         html_class="pvjury_table_but table_leftalign",
-        html_title=f"""<div style="margin-bottom: 8px;"><span style="font-size: 120%; font-weight: bold;">{title}</span>
+        html_title=f"""<div style="margin-bottom: 8px;"><span
+            style="font-size: 120%; font-weight: bold;">{title}</span>
         <span style="padding-left: 20px;">
         <a href="{url_for("notes.pvjury_page_but", 
         scodoc_dept=g.scodoc_dept, formsemestre_id=formsemestre_id, fmt="xlsx")}"
@@ -126,7 +127,7 @@ def pvjury_table_but(
     for etudid in etudids:
         if not etudid in formsemestre_etudids:
             continue  # garde fou
-        etud: Identite = Identite.query.get(etudid)
+        etud = Identite.get_etud(etudid)
         try:
             deca = jury_but.DecisionsProposeesAnnee(etud, formsemestre)
             if deca.annee_but != annee_but:  # wtf ?
diff --git a/app/but/jury_but_results.py b/app/but/jury_but_results.py
index f6a208f3..00aa649a 100644
--- a/app/but/jury_but_results.py
+++ b/app/but/jury_but_results.py
@@ -31,7 +31,7 @@ def _get_jury_but_etud_result(
     formsemestre: FormSemestre, dpv: dict, etudid: int
 ) -> dict:
     """Résultats de jury d'un étudiant sur un semestre pair de BUT"""
-    etud: Identite = Identite.query.get(etudid)
+    etud = Identite.get_etud(etudid)
     dec_etud = dpv["decisions_dict"][etudid]
     if formsemestre.formation.is_apc():
         deca = jury_but.DecisionsProposeesAnnee(etud, formsemestre)
diff --git a/app/but/jury_but_validation_auto.py b/app/but/jury_but_validation_auto.py
index 674389b5..deae9b59 100644
--- a/app/but/jury_but_validation_auto.py
+++ b/app/but/jury_but_validation_auto.py
@@ -36,7 +36,7 @@ def formsemestre_validation_auto_but(
     nb_etud_modif = 0
     with sco_cache.DeferredSemCacheManager():
         for etudid in formsemestre.etuds_inscriptions:
-            etud: Identite = Identite.query.get(etudid)
+            etud = Identite.get_etud(etudid)
             deca = jury_but.DecisionsProposeesAnnee(etud, formsemestre)
             nb_etud_modif += deca.record_all(
                 no_overwrite=no_overwrite, only_validantes=only_adm
diff --git a/app/but/jury_but_view.py b/app/but/jury_but_view.py
index 60bfa793..0a20e933 100644
--- a/app/but/jury_but_view.py
+++ b/app/but/jury_but_view.py
@@ -519,7 +519,7 @@ def infos_fiche_etud_html(etudid: int) -> str:
     """Section html pour fiche etudiant
     provisoire pour BUT 2022
     """
-    etud: Identite = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     inscriptions = (
         FormSemestreInscription.query.join(FormSemestreInscription.formsemestre)
         .filter(
diff --git a/app/comp/res_classic.py b/app/comp/res_classic.py
index 27ec5cc3..268ea0fb 100644
--- a/app/comp/res_classic.py
+++ b/app/comp/res_classic.py
@@ -230,7 +230,7 @@ class ResultatsSemestreClassic(NotesTableCompat):
             f"""* oups: calcul coef UE impossible\nformsemestre_id='{self.formsemestre.id
             }'\netudid='{etudid}'\nue={ue}"""
         )
-        etud: Identite = Identite.query.get(etudid)
+        etud = Identite.get_etud(etudid)
         raise ScoValueError(
             f"""<div class="scovalueerror"><p>Coefficient de l'UE capitalisée {ue.acronyme}
             impossible à déterminer pour l'étudiant <a href="{
diff --git a/app/comp/res_common.py b/app/comp/res_common.py
index a9459caf..3af4786d 100644
--- a/app/comp/res_common.py
+++ b/app/comp/res_common.py
@@ -388,7 +388,7 @@ class ResultatsSemestre(ResultatsCache):
                 ue_capitalized = UniteEns.query.get(ue_cap["ue_id"])
                 coef_ue = ue_capitalized.ects
                 if coef_ue is None:
-                    orig_sem = FormSemestre.query.get(ue_cap["formsemestre_id"])
+                    orig_sem = FormSemestre.get_formsemestre(ue_cap["formsemestre_id"])
                     raise ScoValueError(
                         f"""L'UE capitalisée {ue_capitalized.acronyme}
                     du semestre {orig_sem.titre_annee()}
diff --git a/app/models/but_validations.py b/app/models/but_validations.py
index 37baff43..364f3293 100644
--- a/app/models/but_validations.py
+++ b/app/models/but_validations.py
@@ -290,7 +290,7 @@ class RegroupementCoherentUE:
 #     rcues = []
 #     for ue_id, formsemestre_id in cursor:
 #         other_ue = UniteEns.query.get(ue_id)
-#         other_formsemestre = FormSemestre.query.get(formsemestre_id)
+#         other_formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 #         rcues.append(
 #             RegroupementCoherentUE(
 #                 etud, formsemestre, ue, other_formsemestre, other_ue, inscription_etat
diff --git a/app/models/etudiants.py b/app/models/etudiants.py
index b7547a85..e4b2e5bb 100644
--- a/app/models/etudiants.py
+++ b/app/models/etudiants.py
@@ -72,13 +72,22 @@ class Identite(db.Model):
         )
 
     @classmethod
-    def from_request(cls, etudid=None, code_nip=None):
+    def from_request(cls, etudid=None, code_nip=None) -> "Identite":
         """Étudiant à partir de l'etudid ou du code_nip, soit
         passés en argument soit retrouvés directement dans la requête web.
         Erreur 404 si inexistant.
         """
         args = make_etud_args(etudid=etudid, code_nip=code_nip)
-        return Identite.query.filter_by(**args).first_or_404()
+        return cls.query.filter_by(**args).first_or_404()
+
+    @classmethod
+    def get_etud(cls, etudid: int) -> "Identite":
+        """Etudiant ou 404, cherche uniquement dans le département courant"""
+        if g.scodoc_dept:
+            return cls.query.filter_by(
+                id=etudid, dept_id=g.scodoc_dept_id
+            ).first_or_404()
+        return cls.query.filter_by(id=etudid).first_or_404()
 
     @classmethod
     def create_etud(cls, **args):
diff --git a/app/models/formsemestre.py b/app/models/formsemestre.py
index 6b832a88..d48b6b15 100644
--- a/app/models/formsemestre.py
+++ b/app/models/formsemestre.py
@@ -159,6 +159,15 @@ class FormSemestre(db.Model):
     def __repr__(self):
         return f"<{self.__class__.__name__} {self.id} {self.titre_annee()}>"
 
+    @classmethod
+    def get_formsemestre(cls, formsemestre_id: int) -> "FormSemestre":
+        """ "FormSemestre ou 404, cherche uniquement dans le département courant"""
+        if g.scodoc_dept:
+            return cls.query.filter_by(
+                id=formsemestre_id, dept_id=g.scodoc_dept_id
+            ).first_or_404()
+        return cls.query.filter_by(id=formsemestre_id).first_or_404()
+
     def sort_key(self) -> tuple:
         """clé pour tris par ordre alphabétique
         (pour avoir le plus récent d'abord, sort avec reverse=True)"""
diff --git a/app/pe/pe_jurype.py b/app/pe/pe_jurype.py
index f55623d3..a18626d6 100644
--- a/app/pe/pe_jurype.py
+++ b/app/pe/pe_jurype.py
@@ -1135,7 +1135,7 @@ class JuryPE(object):
     # ------------------------------------------------------------------------------------------------------------------
     def get_cache_notes_d_un_semestre(self, formsemestre_id: int) -> NotesTableCompat:
         """Charge la table des notes d'un formsemestre"""
-        formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+        formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
         return res_sem.load_formsemestre_results(formsemestre)
 
     # ------------------------------------------------------------------------------------------------------------------
diff --git a/app/pe/pe_semestretag.py b/app/pe/pe_semestretag.py
index 2db20732..037fdad7 100644
--- a/app/pe/pe_semestretag.py
+++ b/app/pe/pe_semestretag.py
@@ -277,7 +277,7 @@ class SemestreTag(pe_tagtable.TableTag):
                 fid_prec = fids_prec[0]
                 # Lecture des notes de ce semestre
                 # le tableau de note du semestre considéré:
-                formsemestre_prec = FormSemestre.query.get_or_404(fid_prec)
+                formsemestre_prec = FormSemestre.get_formsemestre(fid_prec)
                 nt_prec: NotesTableCompat = res_sem.load_formsemestre_results(
                     formsemestre_prec
                 )
diff --git a/app/scodoc/sco_abs_billets.py b/app/scodoc/sco_abs_billets.py
index 5f52e8f7..cdee2373 100644
--- a/app/scodoc/sco_abs_billets.py
+++ b/app/scodoc/sco_abs_billets.py
@@ -65,7 +65,7 @@ def table_billets_etud(
     etudid: int = None, etat: bool = None, with_links=True
 ) -> GenTable:
     """Page avec table billets."""
-    etud = Identite.query.get_or_404(etudid) if etudid is not None else None
+    etud = Identite.get_etud(etudid) if etudid is not None else None
     billets = query_billets_etud(etudid, etat)
     return table_billets(billets, etud=etud, with_links=with_links)
 
diff --git a/app/scodoc/sco_abs_notification.py b/app/scodoc/sco_abs_notification.py
index c5d23845..c01aa491 100644
--- a/app/scodoc/sco_abs_notification.py
+++ b/app/scodoc/sco_abs_notification.py
@@ -272,7 +272,7 @@ def retreive_current_formsemestre(etudid: int, cur_date) -> Optional[FormSemestr
     if not r:
         return None
     # s'il y a plusieurs semestres, prend le premier (rarissime et non significatif):
-    formsemestre = FormSemestre.query.get(r[0]["formsemestre_id"])
+    formsemestre = FormSemestre.get_formsemestre(r[0]["formsemestre_id"])
     return formsemestre
 
 
diff --git a/app/scodoc/sco_abs_views.py b/app/scodoc/sco_abs_views.py
index bb585930..f3473bf5 100644
--- a/app/scodoc/sco_abs_views.py
+++ b/app/scodoc/sco_abs_views.py
@@ -119,7 +119,7 @@ def doSignaleAbsence(
     if moduleimpl_id and moduleimpl_id != "NULL":
         mod = sco_moduleimpl.moduleimpl_list(moduleimpl_id=moduleimpl_id)[0]
         formsemestre_id = mod["formsemestre_id"]
-        formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+        formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
         nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
         ues = nt.get_ues_stat_dict()
         for ue in ues:
@@ -187,7 +187,7 @@ def SignaleAbsenceEtud():  # etudid implied
             menu_module = ""
     else:
         formsemestre_id = etud["cursem"]["formsemestre_id"]
-        formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+        formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
         nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
         ues = nt.get_ues_stat_dict()
         require_module = sco_preferences.get_preference(
diff --git a/app/scodoc/sco_apogee_csv.py b/app/scodoc/sco_apogee_csv.py
index 28a02a69..a19dca83 100644
--- a/app/scodoc/sco_apogee_csv.py
+++ b/app/scodoc/sco_apogee_csv.py
@@ -293,7 +293,7 @@ class ApoEtud(dict):
         """
 
         # futur: #WIP
-        # etud: Identite = Identite.query.filter_by(code_nip=self["nip"]).first()
+        # etud: Identite = Identite.query.filter_by(code_nip=self["nip"], dept_id=g.scodoc_dept_id).first()
         # self.etud = etud
         etuds = sco_etud.get_etud_info(code_nip=self["nip"], filled=True)
         if not etuds:
@@ -478,7 +478,7 @@ class ApoEtud(dict):
             # pas de code semestre en APC !
             return dict(N="", B=20, J="", R="", M="")
         if decision is None:
-            etud = Identite.query.get(etudid)
+            etud = Identite.get_etud(etudid)
             nomprenom = etud.nomprenom if etud else "(inconnu)"
             raise ScoValueError(
                 f"decision absente pour l'étudiant {nomprenom} ({etudid})"
diff --git a/app/scodoc/sco_archives.py b/app/scodoc/sco_archives.py
index c95add7d..fce36c22 100644
--- a/app/scodoc/sco_archives.py
+++ b/app/scodoc/sco_archives.py
@@ -318,7 +318,7 @@ def do_formsemestre_archive(
         gen_formsemestre_recapcomplet_json,
     )
 
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     res: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     sem_archive_id = formsemestre_id
     archive_id = PVArchive.create_obj_archive(sem_archive_id, description)
diff --git a/app/scodoc/sco_bulletins.py b/app/scodoc/sco_bulletins.py
index 1db285ea..82191269 100644
--- a/app/scodoc/sco_bulletins.py
+++ b/app/scodoc/sco_bulletins.py
@@ -147,7 +147,7 @@ def formsemestre_bulletinetud_dict(formsemestre_id, etudid, version="long"):
         raise ValueError("invalid version code !")
 
     prefs = sco_preferences.SemPreferences(formsemestre_id)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     if not nt.get_etud_etat(etudid):
         raise ScoValueError("Étudiant non inscrit à ce semestre")
diff --git a/app/scodoc/sco_bulletins_json.py b/app/scodoc/sco_bulletins_json.py
index 2239a21b..f7181487 100644
--- a/app/scodoc/sco_bulletins_json.py
+++ b/app/scodoc/sco_bulletins_json.py
@@ -105,9 +105,9 @@ def formsemestre_bulletinetud_published_dict(
         version = version[:-4]  # enlève le "_mat"
         with_matieres = True
 
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     prefs = sco_preferences.SemPreferences(formsemestre_id)
-    etud = Identite.query.get(etudid)
+    etud = Identite.get_etud(etudid)
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
 
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
diff --git a/app/scodoc/sco_bulletins_pdf.py b/app/scodoc/sco_bulletins_pdf.py
index f99b2f99..314aff5d 100644
--- a/app/scodoc/sco_bulletins_pdf.py
+++ b/app/scodoc/sco_bulletins_pdf.py
@@ -256,7 +256,7 @@ def get_etud_bulletins_pdf(etudid, version="selectedevals"):
     "Bulletins pdf de tous les semestres de l'étudiant, et filename"
     from app.scodoc import sco_bulletins
 
-    etud: Identite = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     fragments = []
     bookmarks = {}
     filigrannes = {}
diff --git a/app/scodoc/sco_bulletins_xml.py b/app/scodoc/sco_bulletins_xml.py
index 923181d2..e2ad7661 100644
--- a/app/scodoc/sco_bulletins_xml.py
+++ b/app/scodoc/sco_bulletins_xml.py
@@ -84,7 +84,7 @@ def make_xml_formsemestre_bulletinetud(
     log("xml_bulletin( formsemestre_id=%s, etudid=%s )" % (formsemestre_id, etudid))
 
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if formsemestre.formation.is_apc():
         return bulletin_but_xml_compat(
             formsemestre_id,
@@ -156,7 +156,7 @@ def make_xml_formsemestre_bulletinetud(
         pid = partition["partition_id"]
         partitions_etud_groups[pid] = sco_groups.get_etud_groups_in_partition(pid)
 
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     ues = nt.get_ues_stat_dict()
     modimpls = nt.get_modimpls_dict()
diff --git a/app/scodoc/sco_cost_formation.py b/app/scodoc/sco_cost_formation.py
index 334d3a0a..87937b5e 100644
--- a/app/scodoc/sco_cost_formation.py
+++ b/app/scodoc/sco_cost_formation.py
@@ -55,7 +55,7 @@ def formsemestre_table_estim_cost(
     peut conduire à une sur-estimation du coût s'il y a des modules optionnels
     (dans ce cas, retoucher le tableau excel exporté).
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 
     rows = []
     for modimpl in formsemestre.modimpls:
diff --git a/app/scodoc/sco_cursus.py b/app/scodoc/sco_cursus.py
index d4d996de..53def6f9 100644
--- a/app/scodoc/sco_cursus.py
+++ b/app/scodoc/sco_cursus.py
@@ -42,7 +42,7 @@ def get_situation_etud_cursus(
     etud: dict, formsemestre_id: int
 ) -> sco_cursus_dut.SituationEtudCursus:
     """renvoie une instance de SituationEtudCursus (ou sous-classe spécialisée)"""
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     if formsemestre.formation.is_apc():
@@ -110,7 +110,7 @@ def list_formsemestre_utilisateurs_uecap(formsemestre_id):
     """Liste des formsemestres pouvant utiliser une UE capitalisee de ce semestre
     (et qui doivent donc etre sortis du cache si l'on modifie ce
     semestre): meme code formation, meme semestre_id, date posterieure"""
-    formsemestre = FormSemestre.query.get(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 
     cursor = db.session.execute(
         text(
diff --git a/app/scodoc/sco_cursus_dut.py b/app/scodoc/sco_cursus_dut.py
index babaede7..3cf2897f 100644
--- a/app/scodoc/sco_cursus_dut.py
+++ b/app/scodoc/sco_cursus_dut.py
@@ -890,7 +890,7 @@ def formsemestre_validate_ues(formsemestre_id, etudid, code_etat_sem, assiduite)
     """
     valid_semestre = code_etat_sem in CODES_SEM_VALIDES
     cnx = ndb.GetDBConnexion()
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     ue_ids = [x["ue_id"] for x in nt.get_ues_stat_dict(filter_sport=True)]
     for ue_id in ue_ids:
diff --git a/app/scodoc/sco_etape_apogee.py b/app/scodoc/sco_etape_apogee.py
index 2be38c6d..ef60acca 100644
--- a/app/scodoc/sco_etape_apogee.py
+++ b/app/scodoc/sco_etape_apogee.py
@@ -381,7 +381,7 @@ print apo_csv_list_stored_archives()
 
 groups_infos = sco_groups_view.DisplayedGroupsInfos( [sco_groups.get_default_group(formsemestre_id)], formsemestre_id=formsemestre_id)
 
-formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 #
 s = SemSet('NSS29902')
diff --git a/app/scodoc/sco_evaluation_edit.py b/app/scodoc/sco_evaluation_edit.py
index 6c418519..fd15fbf2 100644
--- a/app/scodoc/sco_evaluation_edit.py
+++ b/app/scodoc/sco_evaluation_edit.py
@@ -78,7 +78,7 @@ def evaluation_create_form(
     ]
     mod = modimpl_o["module"]
     formsemestre_id = modimpl_o["formsemestre_id"]
-    formsemestre = FormSemestre.query.get(formsemestre_id)
+    formsemestre = modimpl.formsemestre
     sem_ues = formsemestre.query_ues(with_sport=False).all()
     is_malus = mod["module_type"] == ModuleType.MALUS
     is_apc = mod["module_type"] in (ModuleType.RESSOURCE, ModuleType.SAE)
diff --git a/app/scodoc/sco_evaluations.py b/app/scodoc/sco_evaluations.py
index 9bfcfd4c..4626509f 100644
--- a/app/scodoc/sco_evaluations.py
+++ b/app/scodoc/sco_evaluations.py
@@ -379,7 +379,7 @@ def _eval_etat(evals):
 def do_evaluation_etat_in_sem(formsemestre_id):
     """-> nb_eval_completes, nb_evals_en_cours, nb_evals_vides,
     date derniere modif, attente"""
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     evals = nt.get_evaluations_etats()
     etat = _eval_etat(evals)
@@ -399,7 +399,7 @@ def do_evaluation_etat_in_mod(nt, moduleimpl_id):
 
 def formsemestre_evaluations_cal(formsemestre_id):
     """Page avec calendrier de toutes les evaluations de ce semestre"""
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     evals = nt.get_evaluations_etats()
@@ -534,7 +534,7 @@ def formsemestre_evaluations_delai_correction(formsemestre_id, format="html"):
 
     N'indique pas les évaluations de rattrapage ni celles des modules de bonus/malus.
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     evals = nt.get_evaluations_etats()
diff --git a/app/scodoc/sco_export_results.py b/app/scodoc/sco_export_results.py
index d4e9a378..01c6c536 100644
--- a/app/scodoc/sco_export_results.py
+++ b/app/scodoc/sco_export_results.py
@@ -77,7 +77,7 @@ def _build_results_table(start_date=None, end_date=None, types_parcours=[]):
         {}
     )  # etudid : { formsemestre_id d'inscription le plus recent dans les dates considérées, etud }
     for formsemestre_id in formsemestre_ids_parcours:
-        formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+        formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
         nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
         etudids = nt.get_etudids()
         for etudid in etudids:
diff --git a/app/scodoc/sco_formsemestre_edit.py b/app/scodoc/sco_formsemestre_edit.py
index cdb8277a..266e364c 100644
--- a/app/scodoc/sco_formsemestre_edit.py
+++ b/app/scodoc/sco_formsemestre_edit.py
@@ -942,7 +942,7 @@ def do_formsemestre_createwithmodules(edit=False, formsemestre: FormSemestre = N
                 mod = sco_edit_module.module_list({"module_id": module_id})[0]
     # --- Association des parcours
     if formsemestre is None:
-        formsemestre = FormSemestre.query.get(formsemestre_id)
+        formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if "parcours" in tf[2]:
         formsemestre.parcours = [
             ApcParcours.query.get(int(parcour_id_str))
diff --git a/app/scodoc/sco_formsemestre_exterieurs.py b/app/scodoc/sco_formsemestre_exterieurs.py
index 404105ac..67f05d62 100644
--- a/app/scodoc/sco_formsemestre_exterieurs.py
+++ b/app/scodoc/sco_formsemestre_exterieurs.py
@@ -65,7 +65,7 @@ def formsemestre_ext_create(etudid, sem_params):
     # Check args
     _ = Formation.query.get_or_404(sem_params["formation_id"])
     if etudid:
-        _ = Identite.query.get_or_404(etudid)
+        _ = Identite.get_etud(etudid)
 
     # Create formsemestre
     sem_params["modalite"] = "EXT"
@@ -85,7 +85,7 @@ def formsemestre_ext_create(etudid, sem_params):
 
 def formsemestre_ext_create_form(etudid, formsemestre_id):
     """Formulaire création/inscription à un semestre extérieur"""
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     H = [
         html_sco_header.sco_header(),
         f"""<h2>Enregistrement d'une inscription antérieure dans un autre
@@ -236,7 +236,7 @@ def formsemestre_ext_edit_ue_validations(formsemestre_id, etudid):
     mais pas enregistrée.
     """
     formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     ues = formsemestre.formation.ues.filter(UniteEns.type != UE_SPORT).order_by(
         UniteEns.semestre_idx, UniteEns.numero
     )
diff --git a/app/scodoc/sco_formsemestre_inscriptions.py b/app/scodoc/sco_formsemestre_inscriptions.py
index 79f7f006..c12fa73a 100644
--- a/app/scodoc/sco_formsemestre_inscriptions.py
+++ b/app/scodoc/sco_formsemestre_inscriptions.py
@@ -149,9 +149,7 @@ def do_formsemestre_demission(
         event_date_iso = ndb.DateDMYtoISO(event_date)
     except ValueError as exc:
         raise ScoValueError("format de date invalide") from exc
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
     # check lock
     formsemestre: FormSemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
@@ -201,8 +199,8 @@ def do_formsemestre_desinscription(etudid, formsemestre_id):
     """
     from app.scodoc import sco_formsemestre_edit
 
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
-    etud = Identite.query.get_or_404(etudid)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
+    etud = Identite.get_etud(etudid)
     # -- check lock
     if not formsemestre.etat:
         raise ScoValueError("désinscription impossible: semestre verrouille")
@@ -282,7 +280,7 @@ def do_formsemestre_inscription_with_modules(
     group_ids = group_ids or []
     if isinstance(group_ids, int):
         group_ids = [group_ids]
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     # inscription au semestre
     args = {"formsemestre_id": formsemestre_id, "etudid": etudid}
     if etat is not None:
@@ -418,7 +416,7 @@ def formsemestre_inscription_with_modules(
     if multiple_ok:
         multiple_ok = int(multiple_ok)
     formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
-    etud: Identite = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     if etud.dept_id != formsemestre.dept_id:
         raise ScoValueError("l'étudiant n'est pas dans ce département")
     H = [
@@ -530,7 +528,7 @@ def formsemestre_inscription_option(etudid, formsemestre_id):
         raise ScoValueError("Modification impossible: semestre verrouille")
 
     etud = sco_etud.get_etud_info(etudid=etudid, filled=True)[0]
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     footer = html_sco_header.sco_footer()
@@ -848,7 +846,7 @@ def list_inscrits_ailleurs(formsemestre_id):
     Pour chacun, donne la liste des semestres.
     { etudid : [ liste de sems ] }
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     etudids = nt.get_etudids()
diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index 534c5afc..38bc79d6 100644
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -539,7 +539,7 @@ def formsemestre_page_title(formsemestre_id=None):
     except ValueError:
         log(f"formsemestre_id: invalid type {formsemestre_id:r}")
         return ""
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 
     return render_template(
         "formsemestre_page_title.j2",
@@ -1394,7 +1394,7 @@ def formsemestre_warning_etuds_sans_note(
     if nb_sans_notes < 5:
         # peu d'étudiants, affiche leurs noms
         etuds: list[Identite] = sorted(
-            [Identite.query.get(etudid) for etudid in etudids_sans_notes],
+            [Identite.get_etud(etudid) for etudid in etudids_sans_notes],
             key=lambda e: e.sort_key,
         )
         noms = ", ".join(
@@ -1437,7 +1437,7 @@ def formsemestre_note_etuds_sans_notes(
     if etudid:
         etudids_sans_notes = etudids_sans_notes.intersection({etudid})
     etuds: list[Identite] = sorted(
-        [Identite.query.get_or_404(eid) for eid in etudids_sans_notes],
+        [Identite.get_etud(eid) for eid in etudids_sans_notes],
         key=lambda e: e.sort_key,
     )
     if request.method == "POST":
@@ -1458,7 +1458,7 @@ def formsemestre_note_etuds_sans_notes(
             message = """<h3>aucun étudiant sans notes</h3>"""
         else:
             flash(
-                f"""{Identite.query.get_or_404(etudid).nomprenom} 
+                f"""{Identite.get_etud(etudid).nomprenom}
                 a déjà des notes"""
             )
             return redirect(
diff --git a/app/scodoc/sco_formsemestre_validation.py b/app/scodoc/sco_formsemestre_validation.py
index c5806fd2..6f0f3e7a 100644
--- a/app/scodoc/sco_formsemestre_validation.py
+++ b/app/scodoc/sco_formsemestre_validation.py
@@ -80,9 +80,8 @@ def formsemestre_validation_etud_form(
     formsemestre: FormSemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
+
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     T = nt.get_table_moyennes_triees()
     if not etudid and etud_index is None:
@@ -136,7 +135,7 @@ def formsemestre_validation_etud_form(
 
     # Navigation suivant/precedent
     if etud_index_prev is not None:
-        etud_prev = Identite.query.get(T[etud_index_prev][-1])
+        etud_prev = Identite.get_etud(T[etud_index_prev][-1])
         url_prev = url_for(
             "notes.formsemestre_validation_etud_form",
             scodoc_dept=g.scodoc_dept,
@@ -146,7 +145,7 @@ def formsemestre_validation_etud_form(
     else:
         url_prev = None
     if etud_index_next is not None:
-        etud_next = Identite.query.get(T[etud_index_next][-1])
+        etud_next = Identite.get_etud(T[etud_index_next][-1])
         url_next = url_for(
             "notes.formsemestre_validation_etud_form",
             scodoc_dept=g.scodoc_dept,
@@ -934,7 +933,7 @@ def do_formsemestre_validation_auto(formsemestre_id):
     "Saisie automatisee des decisions d'un semestre"
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
     next_semestre_id = sem["semestre_id"] + 1
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     etudids = nt.get_etudids()
     nb_valid = 0
@@ -1201,7 +1200,7 @@ def do_formsemestre_validate_previous_ue(
     Si le coefficient est spécifié, modifie le coefficient de
     cette UE (utile seulement pour les semestres extérieurs).
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     ue: UniteEns = UniteEns.query.get_or_404(ue_id)
 
diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index 36d6946c..8b1da28a 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -549,7 +549,7 @@ def XMLgetGroupsInPartition(partition_id):  # was XMLgetGroupesTD
     t0 = time.time()
     partition = get_partition(partition_id)
     formsemestre_id = partition["formsemestre_id"]
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     etuds_set = {ins.etudid for ins in formsemestre.inscriptions}
 
     groups = get_partition_groups(partition)
@@ -745,6 +745,7 @@ def setGroups(
         log(msg)
         return xml_error(msg, code=403)
     formsemestre_id = partition["formsemestre_id"]
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if not sco_permissions_check.can_change_groups(formsemestre_id):
         raise AccessDenied("Vous n'avez pas le droit d'effectuer cette opération !")
     log("***setGroups: partition_id=%s" % partition_id)
@@ -821,7 +822,6 @@ def setGroups(
             change_etud_group_in_partition(etudid, group.id, partition)
 
     # Update parcours
-    formsemestre = FormSemestre.query.get(formsemestre_id)
     formsemestre.update_inscriptions_parcours_from_groups()
 
     data = (
@@ -952,7 +952,7 @@ def edit_partition_form(formsemestre_id=None):
     # ad-hoc form
     if not sco_permissions_check.can_change_groups(formsemestre_id):
         raise AccessDenied("Vous n'avez pas le droit d'effectuer cette opération !")
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     partitions = get_partitions_list(formsemestre_id)
     arrow_up, arrow_down, arrow_none = get_arrow_icons_tags()
     suppricon = scu.icontag(
@@ -1136,7 +1136,7 @@ def partition_delete(partition_id, force=False, redirect=1, dialog_confirmed=Fal
     formsemestre_id = partition["formsemestre_id"]
     if not sco_permissions_check.can_change_groups(formsemestre_id):
         raise AccessDenied("Vous n'avez pas le droit d'effectuer cette opération !")
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
 
     if not partition["partition_name"] and not force:
         raise ValueError("cannot suppress this partition")
@@ -1404,7 +1404,7 @@ def groups_auto_repartition(partition_id=None):
     if not partition["groups_editable"]:
         raise AccessDenied("Partition non éditable")
     formsemestre_id = partition["formsemestre_id"]
-    formsemestre = FormSemestre.query.get(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     # renvoie sur page édition groupes
     dest_url = url_for(
         "scolar.affect_groups", scodoc_dept=g.scodoc_dept, partition_id=partition_id
diff --git a/app/scodoc/sco_liste_notes.py b/app/scodoc/sco_liste_notes.py
index ac3f94aa..c5443680 100644
--- a/app/scodoc/sco_liste_notes.py
+++ b/app/scodoc/sco_liste_notes.py
@@ -322,7 +322,9 @@ def _make_table_notes(
     for etudid, etat in etudid_etats:
         css_row_class = None
         # infos identite etudiant
-        etud = Identite.query.get(etudid)
+        etud: Identite = Identite.query.filter_by(
+            id=etudid, dept_id=g.scodoc_dept_id
+        ).first()
         if etud is None:
             continue
 
@@ -825,7 +827,7 @@ def _add_moymod_column(
 ):
     """Ajoute la colonne moymod à rows"""
     col_id = "moymod"
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     inscrits = formsemestre.etudids_actifs
 
diff --git a/app/scodoc/sco_moduleimpl_inscriptions.py b/app/scodoc/sco_moduleimpl_inscriptions.py
index 06c7ffb1..196051b0 100644
--- a/app/scodoc/sco_moduleimpl_inscriptions.py
+++ b/app/scodoc/sco_moduleimpl_inscriptions.py
@@ -264,7 +264,7 @@ def moduleimpl_inscriptions_stats(formsemestre_id):
 
     """
     authuser = current_user
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     res: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     is_apc = formsemestre.formation.is_apc()
     inscrits = sco_formsemestre_inscriptions.do_formsemestre_inscription_list(
@@ -678,7 +678,7 @@ def get_etuds_with_capitalized_ue(formsemestre_id: int) -> list[dict]:
     returns { ue_id : [ { infos } ] }
     """
     ues_cap_info = collections.defaultdict(list)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     inscrits = sco_formsemestre_inscriptions.do_formsemestre_inscription_list(
diff --git a/app/scodoc/sco_page_etud.py b/app/scodoc/sco_page_etud.py
index 218d459d..6ac2b4bc 100644
--- a/app/scodoc/sco_page_etud.py
+++ b/app/scodoc/sco_page_etud.py
@@ -172,7 +172,7 @@ def ficheEtud(etudid=None):
         raise ScoValueError("Étudiant inexistant !")
     etud_ = etuds[0]  # transition: etud_ à éliminer et remplacer par etud
     etudid = etud_["etudid"]
-    etud = Identite.query.get(etudid)
+    etud = Identite.get_etud(etudid)
     sco_etud.fill_etuds_info([etud_])
     #
     info = etud_
diff --git a/app/scodoc/sco_photos.py b/app/scodoc/sco_photos.py
index cdf0e9fb..b1e73dcb 100644
--- a/app/scodoc/sco_photos.py
+++ b/app/scodoc/sco_photos.py
@@ -144,7 +144,7 @@ def get_photo_image(etudid=None, size="small"):
     if not etudid:
         filename = UNKNOWN_IMAGE_PATH
     else:
-        etud = Identite.query.get_or_404(etudid)
+        etud = Identite.get_etud(etudid)
         filename = photo_pathname(etud.photo_filename, size=size)
         if not filename:
             filename = UNKNOWN_IMAGE_PATH
diff --git a/app/scodoc/sco_prepajury.py b/app/scodoc/sco_prepajury.py
index 9ec0a95b..fc369efc 100644
--- a/app/scodoc/sco_prepajury.py
+++ b/app/scodoc/sco_prepajury.py
@@ -55,7 +55,7 @@ def feuille_preparation_jury(formsemestre_id):
     """Feuille excel pour préparation des jurys classiques.
     Non adaptée pour le BUT.
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     etuds: Identite = nt.get_inscrits(order_by="moy")  # tri par moy gen
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
diff --git a/app/scodoc/sco_pv_dict.py b/app/scodoc/sco_pv_dict.py
index d597f12b..c48aa5f0 100644
--- a/app/scodoc/sco_pv_dict.py
+++ b/app/scodoc/sco_pv_dict.py
@@ -99,7 +99,7 @@ def dict_pvjury(
     decisions = []
     D = {}  # même chose que decisions, mais { etudid : dec }
     for etudid in etudids:
-        etud: Identite = Identite.query.get(etudid)
+        etud = Identite.get_etud(etudid)
         Se = sco_cursus.get_situation_etud_cursus(
             etud.to_dict_scodoc7(), formsemestre_id
         )
diff --git a/app/scodoc/sco_pv_forms.py b/app/scodoc/sco_pv_forms.py
index 13fe41c6..5b7be89e 100644
--- a/app/scodoc/sco_pv_forms.py
+++ b/app/scodoc/sco_pv_forms.py
@@ -211,7 +211,7 @@ def formsemestre_pvjury(formsemestre_id, format="html", publish=True):
     En classique: table spécifique avec les deux semestres pour le DUT
     En APC/BUT: renvoie vers table recap, en mode jury.
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     is_apc = formsemestre.formation.is_apc()
     if format == "html" and is_apc:
         return redirect(
@@ -331,7 +331,7 @@ def formsemestre_pvjury_pdf(formsemestre_id, group_ids: list[int] = None, etudid
     groups_infos = None
     if etudid:
         # PV pour ce seul étudiant:
-        etud = Identite.query.get_or_404(etudid)
+        etud = Identite.get_etud(etudid)
         etuddescr = f"""<a class="discretelink" href="{
             url_for("scolar.ficheEtud", scodoc_dept=g.scodoc_dept, etudid=etudid)
         }">{etud.nomprenom}</a>"""
diff --git a/app/scodoc/sco_pv_lettres_inviduelles.py b/app/scodoc/sco_pv_lettres_inviduelles.py
index 66868bcb..997645ca 100644
--- a/app/scodoc/sco_pv_lettres_inviduelles.py
+++ b/app/scodoc/sco_pv_lettres_inviduelles.py
@@ -93,7 +93,7 @@ def pdf_lettres_individuelles(
             or decision.get("decision_rcue")
             or decision.get("decisions_ue")
         ):  # decision prise
-            etud: Identite = Identite.query.get(decision["identite"]["etudid"])
+            etud = Identite.get_etud(decision["identite"]["etudid"])
             params["nomEtud"] = etud.nomprenom  # backward compat
             bookmarks[npages + 1] = scu.suppress_accents(etud.nomprenom)
             try:
@@ -179,7 +179,7 @@ def pdf_lettre_individuelle(sem, decision, etud: Identite, params, signature=Non
     """
     #
     formsemestre_id = sem["formsemestre_id"]
-    formsemestre = FormSemestre.query.get(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     situation_etud: SituationEtudCursus = decision["Se"]
     titre_jury, titre_jury_court = jury_titres(
         formsemestre,
diff --git a/app/scodoc/sco_recapcomplet.py b/app/scodoc/sco_recapcomplet.py
index 022b470c..af91313f 100644
--- a/app/scodoc/sco_recapcomplet.py
+++ b/app/scodoc/sco_recapcomplet.py
@@ -85,7 +85,7 @@ def formsemestre_recapcomplet(
     """
     if not isinstance(formsemestre_id, int):
         abort(404)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     file_formats = {"csv", "json", "xls", "xlsx", "xlsall", "xml"}
     supported_formats = file_formats | {"html", "evals"}
     if tabformat not in supported_formats:
@@ -323,7 +323,7 @@ def gen_formsemestre_recapcomplet_xml(
     force_publishing=True,
 ) -> str:
     "XML export: liste tous les bulletins XML."
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     T = nt.get_table_moyennes_triees()
     if not T:
@@ -370,7 +370,7 @@ def gen_formsemestre_recapcomplet_json(
     :param force_publishing: donne les bulletins même si non "publiés sur portail"
     :returns: dict
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     is_apc = formsemestre.formation.is_apc()
 
     if xml_nodate:
@@ -390,13 +390,13 @@ def gen_formsemestre_recapcomplet_json(
         "bulletins": [],
     }
     bulletins = js_data["bulletins"]
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     T = nt.get_table_moyennes_triees()
     for t in T:
         etudid = t[-1]
         if is_apc:
-            etud = Identite.query.get(etudid)
+            etud = Identite.get_etud(etudid)
             bulletins_sem = bulletin_but.BulletinBUT(formsemestre)
             bul = bulletins_sem.bulletin_etud(etud, formsemestre)
         else:
diff --git a/app/scodoc/sco_report.py b/app/scodoc/sco_report.py
index 4cb0d7ca..70bc7afe 100644
--- a/app/scodoc/sco_report.py
+++ b/app/scodoc/sco_report.py
@@ -83,7 +83,7 @@ def formsemestre_etuds_stats(sem: dict, only_primo=False):
     etuds = []
     for t in T:
         etudid = t[-1]
-        etudiant: Identite = Identite.query.get(etudid)
+        etudiant = Identite.get_etud(etudid)
         etud = sco_etud.get_etud_info(etudid=etudid, filled=True)[0]
         etud["annee_admission"] = etud["annee"]  # plus explicite
         decision = nt.get_etud_decision_sem(etudid)
@@ -452,7 +452,7 @@ def table_suivi_cohorte(
 
     logt("table_suivi_cohorte: start")
     # 1-- Liste des semestres posterieurs dans lesquels ont été les etudiants de sem
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     etudids = nt.get_etudids()
 
@@ -978,7 +978,7 @@ def _descr_etud_set(etudids):
 
 def _count_dem_reo(formsemestre_id, etudids):
     "count nb of demissions and reorientation in this etud set"
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
 
     dems = set()
@@ -1096,7 +1096,7 @@ def tsp_etud_list(
     """
     # log('tsp_etud_list(%s, bac="%s")' % (formsemestre_id,bac))
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     etudids = nt.get_etudids()
     etuds = []
diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index b8a2de08..641f4caa 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -949,7 +949,7 @@ def has_existing_decision(M, E, etudid):
     Si oui, return True
     """
     formsemestre_id = M["formsemestre_id"]
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
     if nt.get_etud_decision_sem(etudid):
         return True
@@ -1109,7 +1109,7 @@ def _get_sorted_etuds(eval_dict: dict, etudids: list, formsemestre_id: int):
     for etudid in etudids:
         # infos identite etudiant
         e = sco_etud.etudident_list(cnx, {"etudid": etudid})[0]
-        etud: Identite = Identite.query.get(etudid)
+        etud = Identite.get_etud(etudid)
         # TODO: refactor et eliminer etudident_list.
         e["etud"] = etud  # utilisé seulement pour le tri -- a refactorer
         sco_etud.format_etud_ident(e)
diff --git a/app/scodoc/sco_ue_external.py b/app/scodoc/sco_ue_external.py
index b259f9e4..55d2e289 100644
--- a/app/scodoc/sco_ue_external.py
+++ b/app/scodoc/sco_ue_external.py
@@ -87,7 +87,7 @@ def external_ue_create(
     puis un moduleimpl.
     Return: moduleimpl_id
     """
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     log(f"creating external UE in {formsemestre}: {acronyme}")
 
     # Contrôle d'accès:
diff --git a/app/tables/list_etuds.py b/app/tables/list_etuds.py
index 175cf072..c559e932 100644
--- a/app/tables/list_etuds.py
+++ b/app/tables/list_etuds.py
@@ -106,7 +106,7 @@ class RowEtud(tb.Row):
 
 def etuds_sorted_from_ids(etudids) -> list[Identite]:
     "Liste triée d'etuds à partir d'une collections d'etudids"
-    etuds = [Identite.query.get_or_404(etudid) for etudid in etudids]
+    etuds = [Identite.get_etud(etudid) for etudid in etudids]
     return sorted(etuds, key=lambda etud: etud.sort_key)
 
 
diff --git a/app/tables/recap.py b/app/tables/recap.py
index c50a65af..989629ae 100644
--- a/app/tables/recap.py
+++ b/app/tables/recap.py
@@ -94,7 +94,7 @@ class TableRecap(tb.Table):
             self.set_groups(groups)
 
             for etudid in res.formsemestre.etuds_inscriptions:
-                etud = Identite.query.get(etudid)
+                etud = Identite.get_etud(etudid)
                 row = self.row_class(self, etud)
                 self.add_row(row)
                 row.add_etud_cols()
diff --git a/app/views/__init__.py b/app/views/__init__.py
index d76a1894..3de17f33 100644
--- a/app/views/__init__.py
+++ b/app/views/__init__.py
@@ -64,7 +64,7 @@ class ScoData:
                 elif request.method == "POST":
                     etudid = request.form.get("etudid", None)
             if etudid is not None:
-                etud = Identite.query.get_or_404(etudid)
+                etud = Identite.get_etud(etudid)
         self.etud = etud
         if etud is not None:
             # Infos sur l'étudiant courant
@@ -87,7 +87,7 @@ class ScoData:
                 sco_formsemestre_status.retreive_formsemestre_from_request()
             )
             if formsemestre_id is not None:
-                formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+                formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
         if formsemestre is None:
             self.sem = None
             self.sem_menu_bar = None
diff --git a/app/views/absences.py b/app/views/absences.py
index 44018d47..340752e7 100644
--- a/app/views/absences.py
+++ b/app/views/absences.py
@@ -363,7 +363,7 @@ def SignaleAbsenceGrHebdo(
     )
 
     formsemestre_id = groups_infos.formsemestre_id
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if formsemestre.dept_id != g.scodoc_dept_id:
         abort(404, "groupes inexistants dans ce département")
     require_module = sco_preferences.get_preference(
diff --git a/app/views/notes.py b/app/views/notes.py
index 26207eab..38325274 100644
--- a/app/views/notes.py
+++ b/app/views/notes.py
@@ -282,9 +282,7 @@ def formsemestre_bulletinetud(
         formsemestre_id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
     if etudid:
-        etud = models.Identite.query.filter_by(
-            etudid=etudid, dept_id=formsemestre.dept_id
-        ).first_or_404()
+        etud = Identite.get_etud(etudid)
     elif code_nip:
         etud = models.Identite.query.filter_by(
             code_nip=str(code_nip), dept_id=formsemestre.dept_id
@@ -1307,7 +1305,7 @@ def view_module_abs(moduleimpl_id, format="html"):
 @scodoc
 def delete_ue_expr(formsemestre_id: int, ue_id: int):
     """Efface une expression de calcul d'UE"""
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if not formsemestre.can_be_edited_by(current_user):
         raise AccessDenied("vous n'avez pas le droit d'effectuer cette opération")
     expr = FormSemestreUEComputationExpr.query.filter_by(
@@ -1587,9 +1585,9 @@ def etud_desinscrit_ue(etudid, formsemestre_id, ue_id):
     - En classique: désinscrit l'etudiant de tous les modules de cette UE dans ce semestre.
     - En APC: dispense de l'UE indiquée.
     """
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     ue = UniteEns.query.get_or_404(ue_id)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     if ue.formation.is_apc():
         if (
             DispenseUE.query.filter_by(
@@ -1638,7 +1636,7 @@ def etud_inscrit_ue(etudid, formsemestre_id, ue_id):
     formsemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     ue = UniteEns.query.get_or_404(ue_id)
     if ue.formation.is_apc():
         for disp in DispenseUE.query.filter_by(
@@ -2045,7 +2043,7 @@ def formsemestre_bulletins_mailetuds(
     (inscrit non démissionnaire ni défaillant et ayant un mail renseigné dans ScoDoc)
     """
     prefer_mail_perso = int(prefer_mail_perso)
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     inscriptions = [
         inscription
         for inscription in formsemestre.inscriptions
@@ -2330,9 +2328,7 @@ def formsemestre_validation_but(
     formsemestre: FormSemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
     nb_etuds = formsemestre.etuds.count()
     # la route ne donne pas le type d'etudid pour pouvoir construire des URLs
     # provisoires avec NEXT et PREV
@@ -2573,7 +2569,7 @@ def formsemestre_validation_auto_but(formsemestre_id: int = None):
             )
         )
 
-    formsemestre = FormSemestre.query.get_or_404(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     form = jury_but_forms.FormSemestreValidationAutoBUTForm()
     if request.method == "POST":
         if not form.cancel.data:
@@ -2740,7 +2736,7 @@ def formsemestre_validation_suppress_etud(
                 formsemestre_id=formsemestre_id,
             )
         )
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     if formsemestre.formation.is_apc():
         next_url = url_for(
             "scolar.ficheEtud",
@@ -2864,7 +2860,7 @@ def formsemestre_jury_but_erase(
             mode_jury=1,
         )
     else:
-        etud: Identite = Identite.query.get_or_404(etudid)
+        etud = Identite.get_etud(etudid)
         etuds = [etud]
         dest_url = url_for(
             "notes.formsemestre_validation_but",
diff --git a/app/views/scodoc.py b/app/views/scodoc.py
index ec616768..6f231f91 100644
--- a/app/views/scodoc.py
+++ b/app/views/scodoc.py
@@ -227,7 +227,7 @@ def get_etud_dept():
     """
     if "etudid" in request.args:
         # zero ou une réponse:
-        etuds = [Identite.query.get(request.args["etudid"])]
+        etuds = [Identite.get_etud(request.args["etudid"])]
     elif "code_nip" in request.args:
         # il peut y avoir plusieurs réponses si l'étudiant est passé par plusieurs départements
         etuds = Identite.query.filter_by(code_nip=request.args["code_nip"]).all()
diff --git a/app/views/scolar.py b/app/views/scolar.py
index 38c33ae8..8f46df0e 100644
--- a/app/views/scolar.py
+++ b/app/views/scolar.py
@@ -695,7 +695,7 @@ sco_publish(
 @scodoc7func
 def doAddAnnotation(etudid, comment):
     "ajoute annotation sur etudiant"
-    etud = Identite.query.get_or_404(etudid)  # check existence
+    _ = Identite.get_etud(etudid)  # check existence
     if comment:
         cnx = ndb.GetDBConnexion()
         sco_etud.etud_annotations_create(
@@ -746,7 +746,7 @@ def doSuppressAnnotation(etudid, annotation_id):
 @scodoc7func
 def form_change_coordonnees(etudid):
     "edit coordonnees etudiant"
-    etud = Identite.query.get_or_404(etudid)
+    etud = Identite.get_etud(etudid)
     cnx = ndb.GetDBConnexion()
     adrs = sco_etud.adresse_list(cnx, {"etudid": etudid})
     if adrs:
@@ -1064,9 +1064,7 @@ def form_change_photo(etudid=None):
 @scodoc7func
 def form_suppress_photo(etudid=None, dialog_confirmed=False):
     """Formulaire suppression photo étudiant"""
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
     if not dialog_confirmed:
         return scu.confirm_dialog(
             f"<p>Confirmer la suppression de la photo de {etud.nom_disp()} ?</p>",
@@ -1120,9 +1118,7 @@ def _form_dem_of_def(
     operation_method: str = "",
 ):
     "Formulaire démission ou défaillance Etudiant"
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
     formsemestre: FormSemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
@@ -1265,9 +1261,7 @@ def _do_cancel_dem_or_def(
     event_type="DEMISSION",
 ):
     "Annule une démission ou une défaillance"
-    etud: Identite = Identite.query.filter_by(
-        id=etudid, dept_id=g.scodoc_dept_id
-    ).first_or_404()
+    etud = Identite.get_etud(etudid)
     formsemestre: FormSemestre = FormSemestre.query.filter_by(
         id=formsemestre_id, dept_id=g.scodoc_dept_id
     ).first_or_404()
diff --git a/sco_version.py b/sco_version.py
index e5f606a7..f2afe9a7 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.4.67"
+SCOVERSION = "9.4.68"
 
 SCONAME = "ScoDoc"
 
diff --git a/scodoc.py b/scodoc.py
index 71f77d5b..1640f907 100755
--- a/scodoc.py
+++ b/scodoc.py
@@ -18,6 +18,7 @@ from flask_login import login_user, logout_user, current_user
 import psycopg2
 import sqlalchemy
 
+import app as mapp
 from app import create_app, cli, db
 from app import initialize_scodoc_database
 from app import clear_scodoc_cache
@@ -514,17 +515,16 @@ def localize_logo(logo: str = None, dept: str = None):  # migrate-scodoc7-dept-l
 @click.argument("zipfile", type=click.File("rb"))
 def photos_import_files(formsemestre_id: int, xlsfile: str, zipfile: str):
     """Import des photos d'étudiants à partir d'une liste excel et d'un zip avec les images."""
-    import app as mapp
     from app.scodoc import sco_trombino, sco_photos
     from app.auth.models import get_super_admin
 
-    sem = mapp.models.formsemestre.FormSemestre.query.get(formsemestre_id)
-    if not sem:
-        sys.stderr.write("photos-import-files: numéro de semestre invalide\n")
+    formsemestre = FormSemestre.query.get(formsemestre_id)
+    if not formsemestre:
+        sys.stderr.write("photos-import-files: formsemestre_id invalide\n")
         return 2
 
     with app.test_request_context():
-        mapp.set_sco_dept(sem.departement.acronym)
+        mapp.set_sco_dept(formsemestre.departement.acronym)
         admin_user = get_super_admin()
         login_user(admin_user)
 
diff --git a/tests/bench/notes_table.py b/tests/bench/notes_table.py
index 7af261b3..b5a39d72 100644
--- a/tests/bench/notes_table.py
+++ b/tests/bench/notes_table.py
@@ -48,7 +48,7 @@ def bench_notes_table(dept: str, formsemestre_ids: list[int]) -> float:
         tot_time = 0.0
         for formsemestre_id in formsemestre_ids:
             print(f"building sem {formsemestre_id}...")
-            formsemestre = FormSemestre.query.get(formsemestre_id)
+            formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
             t0 = time.time()
             nt: NotesTableCompat = res_sem.load_formsemestre_results(formsemestre)
             tot_time += time.time() - t0
diff --git a/tests/unit/test_but_ues.py b/tests/unit/test_but_ues.py
index 5105039a..ae850b53 100644
--- a/tests/unit/test_but_ues.py
+++ b/tests/unit/test_but_ues.py
@@ -29,7 +29,7 @@ def test_ue_moy(test_client):
         ue3,
     ) = setup.build_modules_with_evaluations(ue_coefs=ue_coefs, nb_mods=nb_mods)
     assert len(evaluation_ids) == nb_mods
-    formsemestre = FormSemestre.query.get(formsemestre_id)
+    formsemestre = FormSemestre.get_formsemestre(formsemestre_id)
     evaluation1 = Evaluation.query.get(evaluation_ids[0])
     evaluation2 = Evaluation.query.get(evaluation_ids[1])
     etud = G.create_etud(nom="test")
diff --git a/tests/unit/test_sco_basic.py b/tests/unit/test_sco_basic.py
index 0030d036..770fbf4e 100644
--- a/tests/unit/test_sco_basic.py
+++ b/tests/unit/test_sco_basic.py
@@ -239,7 +239,7 @@ def run_sco_basic(verbose=False) -> FormSemestre:
 
     # ---- Suppression d'un étudiant, vérification inscription
     # (permet de tester les cascades)
-    etud = Identite.query.get(etuds[0]["etudid"])
+    etud = Identite.get_etud(etuds[0]["etudid"])
     assert etud is not None
     etudid = etud.id
     db.session.delete(etud)