diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 2772d0c..5bfc36b 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: TFJM\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-03-23 11:22+0100\n"
+"POT-Creation-Date: 2024-03-23 23:02+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Emmy D'Anello <emmy.danello@animath.fr>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -490,7 +490,7 @@ msgstr "Ce trigramme est déjà utilisé."
 msgid "No team was found with this access code."
 msgstr "Aucune équipe n'a été trouvée avec ce code d'accès."
 
-#: participation/forms.py:85 participation/forms.py:352
+#: participation/forms.py:85 participation/forms.py:355
 #: registration/forms.py:122 registration/forms.py:144
 #: registration/forms.py:166 registration/forms.py:188
 #: registration/forms.py:237 registration/forms.py:270
@@ -516,7 +516,7 @@ msgstr "Message à adresser à l'équipe :"
 msgid "The uploaded file size must be under 5 Mo."
 msgstr "Le fichier envoyé doit peser moins de 5 Mo."
 
-#: participation/forms.py:157 participation/forms.py:354
+#: participation/forms.py:157 participation/forms.py:357
 msgid "The uploaded file must be a PDF file."
 msgstr "Le fichier envoyé doit être au format PDF."
 
@@ -530,11 +530,15 @@ msgstr "Le fichier PDF ne doit pas avoir plus de 30 pages."
 msgid "Add"
 msgstr "Ajouter"
 
-#: participation/forms.py:251
+#: participation/forms.py:243
+msgid "This user already exists, but is a participant."
+msgstr "Cet⋅te utilisateur⋅rice existe déjà, mais en tant que participant⋅e."
+
+#: participation/forms.py:254
 msgid "CSV file:"
 msgstr "Tableur au format CSV :"
 
-#: participation/forms.py:275
+#: participation/forms.py:278
 msgid ""
 "This file contains non-UTF-8 and non-ISO-8859-1 content. Please send your "
 "sheet as a CSV file."
@@ -542,30 +546,30 @@ msgstr ""
 "Ce fichier contient des éléments non-UTF-8 et non-ISO-8859-1. Merci "
 "d'envoyer votre tableur au format CSV."
 
-#: participation/forms.py:290
+#: participation/forms.py:293
 msgid "Can't determine the pool size. Are you sure your file is correct?"
 msgstr ""
 "Impossible de déterminer la taille de la poule. Êtes-vous sûr⋅e que le "
 "fichier est correct ?"
 
-#: participation/forms.py:310
+#: participation/forms.py:313
 msgid "The following note is higher of the maximum expected value:"
 msgstr "La note suivante est supérieure au maximum attendu :"
 
-#: participation/forms.py:318
+#: participation/forms.py:321
 msgid "The following user was not found:"
 msgstr "L'utilisateur⋅rice suivant n'a pas été trouvé :"
 
-#: participation/forms.py:335
+#: participation/forms.py:338
 msgid "The defender, the opponent and the reporter must be different."
 msgstr ""
 "Les équipes défenseuse, opposante et rapportrice doivent être différent⋅es."
 
-#: participation/forms.py:339
+#: participation/forms.py:342
 msgid "This defender did not work on this problem."
 msgstr "Ce⋅tte défenseur⋅se ne travaille pas sur ce problème."
 
-#: participation/forms.py:358
+#: participation/forms.py:361
 msgid "The PDF file must not have more than 2 pages."
 msgstr "Le fichier PDF ne doit pas avoir plus de 2 pages."
 
@@ -1344,7 +1348,7 @@ msgstr "Modifier la poule"
 msgid "Upload notes"
 msgstr "Envoyer les notes"
 
-#: participation/templates/participation/pool_jury.html:35
+#: participation/templates/participation/pool_jury.html:44
 msgid "Back to pool detail"
 msgstr "Retour aux détails de la poule"
 
@@ -1762,32 +1766,33 @@ msgid "Jury of pool {pool} for {tournament} with teams {teams}"
 msgstr "Jury de la poule {pool} pour {tournament} avec les équipes {teams}"
 
 #: participation/views.py:814
-msgid "This user already exists, but is a participant."
-msgstr "Cet⋅te utilisateur⋅rice existe déjà, mais en tant que participant⋅e."
+#, python-brace-format
+msgid "The jury {name} is already in the pool!"
+msgstr "{name} est déjà dans la poule !"
 
-#: participation/views.py:833
+#: participation/views.py:834
 msgid "New TFJM² jury account"
 msgstr "Nouveau compte de juré⋅e pour le TFJM²"
 
-#: participation/views.py:850
+#: participation/views.py:851
 #, python-brace-format
 msgid "The jury {name} has been successfully added!"
 msgstr "{name} a été ajouté⋅e avec succès en tant que juré⋅e !"
 
-#: participation/views.py:882
+#: participation/views.py:883
 #, python-brace-format
 msgid "The jury {name} has been successfully removed!"
 msgstr "{name} a été retiré⋅e avec succès du jury !"
 
-#: participation/views.py:910
+#: participation/views.py:911
 msgid "The following user is not registered as a jury:"
 msgstr "L'utilisateur⋅rice suivant n'est pas inscrit⋅e en tant que juré⋅e :"
 
-#: participation/views.py:924
+#: participation/views.py:925
 msgid "Notes were successfully uploaded."
 msgstr "Les notes ont bien été envoyées."
 
-#: participation/views.py:1588
+#: participation/views.py:1589
 msgid "You can't upload a synthesis after the deadline."
 msgstr "Vous ne pouvez pas envoyer de note de synthèse après la date limite."
 
diff --git a/participation/forms.py b/participation/forms.py
index 0719fcc..e8dc0e2 100644
--- a/participation/forms.py
+++ b/participation/forms.py
@@ -213,17 +213,17 @@ class AddJuryForm(forms.ModelForm):
         self.helper.layout = Div(
             Div(
                 Div(
-                    Field('first_name', autofocus="autofocus"),
-                    css_class='col-md-3',
-                ),
-                Div(
-                    Field('last_name'),
-                    css_class='col-md-3',
-                ),
-                Div(
-                    Field('email'),
+                    Field('email', autofocus="autofocus", list="juries-email"),
                     css_class='col-md-5',
                 ),
+                Div(
+                    Field('first_name', list="juries-first-name"),
+                    css_class='col-md-3',
+                ),
+                Div(
+                    Field('last_name', list="juries-last-name"),
+                    css_class='col-md-3',
+                ),
                 Div(
                     Submit('submit', _("Add")),
                     css_class='col-md-1 py-md-4',
@@ -239,6 +239,9 @@ class AddJuryForm(forms.ModelForm):
         email = self.data["email"]
         if User.objects.filter(email=email).exists():
             self.instance = User.objects.get(email=email)
+            if self.instance.registration.participates:
+                self.add_error(None, _("This user already exists, but is a participant."))
+                return
         return email
 
     class Meta:
diff --git a/participation/templates/participation/pool_jury.html b/participation/templates/participation/pool_jury.html
index ba69137..30afc63 100644
--- a/participation/templates/participation/pool_jury.html
+++ b/participation/templates/participation/pool_jury.html
@@ -8,15 +8,15 @@
 
     {% for jury in pool.juries.all %}
         <div class="row my-3">
+            <div class="col-md-5">
+                <input type="email" class="form-control" value="{{ jury.user.email }}" disabled>
+            </div>
             <div class="col-md-3">
                 <input type="text" class="form-control" value="{{ jury.user.first_name }}" disabled>
             </div>
             <div class="col-md-3">
                 <input type="text" class="form-control" value="{{ jury.user.last_name }}" disabled>
             </div>
-            <div class="col-md-5">
-                <input type="email" class="form-control" value="{{ jury.user.email }}" disabled>
-            </div>
             <div class="col-md-1">
                 <a href="{% url 'participation:pool_remove_jury' pk=pool.pk  jury_id=jury.id %}" class="btn btn-danger">
                     Retirer
@@ -28,6 +28,15 @@
     {{ form|as_crispy_errors }}
     {% crispy form %}
 
+    <datalist id="juries-email">
+    </datalist>
+
+    <datalist id="juries-first-name">
+    </datalist>
+
+    <datalist id="juries-last-name">
+    </datalist>
+
     <hr>
 
     <div class="row text-center">
@@ -39,8 +48,60 @@
 
 {% block extrajavascript %}
     <script>
-        document.addEventListener('DOMContentLoaded', () => {
-            initModal("updatePool", "{% url "participation:pool_update" pk=pool.pk %}")
+        const emailField = document.getElementById('id_email')
+        const firstNameField = document.getElementById('id_first_name')
+        const lastNameField = document.getElementById('id_last_name')
+
+        const juriesEmailList = document.getElementById('juries-email')
+        const juriesFirstNameList = document.getElementById('juries-first-name')
+        const juriesLastNameList = document.getElementById('juries-last-name')
+
+        function updateJuries(filter) {
+            fetch(`/api/registration/volunteers/?search=${filter}`)
+                .then(response => response.json())
+                .then(response => response.results)
+                .then(data => {
+                    juriesEmailList.innerHTML = ''
+                    juriesFirstNameList.innerHTML = ''
+                    juriesLastNameList.innerHTML = ''
+
+                    data.forEach(jury => {
+                        const optionEmail = document.createElement('option')
+                        optionEmail.value = jury.email
+                        optionEmail.setAttribute('data-id', jury.id)
+                        juriesEmailList.appendChild(optionEmail)
+
+                        const optionFirstName = document.createElement('option')
+                        optionFirstName.value = jury.first_name
+                        optionFirstName.setAttribute('data-id', jury.id)
+                        juriesFirstNameList.appendChild(optionFirstName)
+
+                        const optionLastName = document.createElement('option')
+                        optionLastName.value = jury.last_name
+                        optionLastName.setAttribute('data-id', jury.id)
+                        juriesLastNameList.appendChild(optionLastName)
+                    })
+                })
+        }
+
+        emailField.addEventListener('input', event => {
+            let emailOption = document.querySelector(`datalist[id="juries-email"] > option[value="${event.target.value}"]`)
+            if (emailOption) {
+                let id = emailOption.getAttribute('data-id')
+                let firstNameOption = document.querySelector(`datalist[id="juries-first-name"] > option[data-id="${id}"]`)
+                let lastNameOption = document.querySelector(`datalist[id="juries-last-name"] > option[data-id="${id}"]`)
+                if (firstNameOption && lastNameOption) {
+                    firstNameField.value = firstNameOption.value
+                    lastNameField.value = lastNameOption.value
+                }
+            }
+            updateJuries(event.target.value)
+        })
+        firstNameField.addEventListener('input', event => {
+            updateJuries(event.target.value)
+        })
+        lastNameField.addEventListener('input', event => {
+            updateJuries(event.target.value)
         })
     </script>
 {% endblock %}
diff --git a/participation/views.py b/participation/views.py
index bfa2d90..12b8dbd 100644
--- a/participation/views.py
+++ b/participation/views.py
@@ -810,8 +810,9 @@ class PoolJuryView(VolunteerMixin, FormView, DetailView):
             # The user already exists, so we don't recreate it
             user.refresh_from_db()
             reg = user.registration
-            if reg.participates:
-                form.add_error(None, _("This user already exists, but is a participant."))
+            if reg in self.object.juries.all():
+                messages.warning(self.request, _("The jury {name} is already in the pool!")
+                                 .format(name=f"{user.first_name} {user.last_name}"))
                 return self.form_invalid(form)
         else:
             # Save the user object first
diff --git a/registration/api/serializers.py b/registration/api/serializers.py
index ffe431d..0939bb4 100644
--- a/registration/api/serializers.py
+++ b/registration/api/serializers.py
@@ -50,4 +50,4 @@ class PaymentSerializer(serializers.ModelSerializer):
 class BasicUserSerializer(serializers.ModelSerializer):
     class Meta:
         model = User
-        fields = ['first_name', 'last_name', 'email', ]
+        fields = ['id', 'first_name', 'last_name', 'email', ]