diff --git a/src/main/kotlin/application/Application.kt b/src/main/kotlin/application/Application.kt
index 3c3050f..f297790 100644
--- a/src/main/kotlin/application/Application.kt
+++ b/src/main/kotlin/application/Application.kt
@@ -96,7 +96,6 @@ fun Application.module(env: Env = PROD) {
 
     install(AuthorizationVoter) {
         voters = listOf(
-            ConstitutionVoter(),
             VoteVoter(),
             FollowVoter(),
             OpinionVoter(),
@@ -208,7 +207,7 @@ fun Application.module(env: Env = PROD) {
             deleteMemberOfWorkgroup(get(), get())
             updateMemberOfWorkgroup(get(), get())
             /* TODO */
-            constitution(get())
+            constitution(get(), get())
             followArticle(get())
             followConstitution(get())
             commentConstitution(get(), get())
diff --git a/src/main/kotlin/application/KoinModule.kt b/src/main/kotlin/application/KoinModule.kt
index 2072372..495d867 100644
--- a/src/main/kotlin/application/KoinModule.kt
+++ b/src/main/kotlin/application/KoinModule.kt
@@ -23,6 +23,7 @@ import fr.dcproject.event.publisher.Publisher
 import fr.dcproject.messages.Mailer
 import fr.dcproject.messages.NotificationEmailSender
 import fr.dcproject.repository.CommentConstitutionRepository
+import fr.dcproject.security.voter.ConstitutionVoter
 import fr.postgresjson.connexion.Connection
 import fr.postgresjson.connexion.Requester
 import fr.postgresjson.migration.Migrations
@@ -123,6 +124,7 @@ val KoinModule = module {
     single { CitizenVoter() }
     single { CommentVoter() }
     single { WorkgroupVoter() }
+    single { ConstitutionVoter() }
 
     // Elasticsearch Client
     single<RestClient> {
diff --git a/src/main/kotlin/routes/Constitution.kt b/src/main/kotlin/routes/Constitution.kt
index 3d75098..2055822 100644
--- a/src/main/kotlin/routes/Constitution.kt
+++ b/src/main/kotlin/routes/Constitution.kt
@@ -2,13 +2,12 @@ package fr.dcproject.routes
 
 import fr.dcproject.component.article.ArticleRef
 import fr.dcproject.component.auth.citizen
+import fr.dcproject.component.auth.citizenOrNull
 import fr.dcproject.component.citizen.CitizenWithUserI
 import fr.dcproject.entity.ConstitutionSimple
 import fr.dcproject.entity.ConstitutionSimple.TitleSimple
-import fr.dcproject.security.voter.ConstitutionVoter.Action.CREATE
-import fr.dcproject.security.voter.ConstitutionVoter.Action.VIEW
-import fr.ktorVoter.assertCan
-import fr.ktorVoter.assertCanAll
+import fr.dcproject.security.voter.ConstitutionVoter
+import fr.dcproject.voter.assert
 import fr.postgresjson.entity.UuidEntity
 import fr.postgresjson.repository.RepositoryI
 import io.ktor.application.*
@@ -82,21 +81,21 @@ object ConstitutionPaths {
 }
 
 @KtorExperimentalLocationsAPI
-fun Route.constitution(repo: ConstitutionRepository) {
+fun Route.constitution(repo: ConstitutionRepository, voter: ConstitutionVoter) {
     get<ConstitutionPaths.ConstitutionsRequest> {
         val constitutions = repo.find(it.page, it.limit, it.sort, it.direction, it.search)
-        assertCanAll(VIEW, constitutions.result)
+        voter.assert { canView(constitutions.result, citizenOrNull) }
         call.respond(constitutions)
     }
 
     get<ConstitutionPaths.ConstitutionRequest> {
-        assertCan(VIEW, it.constitution)
+        voter.assert { canView(it.constitution, citizenOrNull) }
         call.respond(it.constitution)
     }
 
     post<ConstitutionPaths.PostConstitutionRequest> {
         it.getNewConstitution(call).let { constitution ->
-            assertCan(CREATE, constitution)
+            voter.assert { canCreate(constitution, citizenOrNull) }
             repo.upsert(constitution)
             call.respond(constitution)
         }
diff --git a/src/main/kotlin/voter/ConstitutionVoter.kt b/src/main/kotlin/voter/ConstitutionVoter.kt
index f24a644..1133ada 100644
--- a/src/main/kotlin/voter/ConstitutionVoter.kt
+++ b/src/main/kotlin/voter/ConstitutionVoter.kt
@@ -1,67 +1,34 @@
 package fr.dcproject.security.voter
 
-import fr.dcproject.component.auth.UserI
-import fr.dcproject.component.auth.user
-import fr.dcproject.component.comment.generic.CommentForView
+import fr.dcproject.component.citizen.CitizenI
+import fr.dcproject.entity.ConstitutionS
 import fr.dcproject.entity.ConstitutionSimple
-import fr.dcproject.voter.NoRuleDefinedException
-import fr.dcproject.voter.NoSubjectDefinedException
-import fr.ktorVoter.*
-import io.ktor.application.*
-import fr.dcproject.entity.Vote as VoteEntity
+import fr.dcproject.voter.Voter
+import fr.dcproject.voter.VoterResponse
 
-class ConstitutionVoter : Voter<ApplicationCall> {
-    enum class Action : ActionI {
-        CREATE,
-        UPDATE,
-        VIEW,
-        DELETE
+class ConstitutionVoter : Voter() {
+    fun canCreate(subject: ConstitutionS, citizen: CitizenI?): VoterResponse = when {
+        citizen == null -> denied("You must be connected to create constitution", "constitution.create.notConnected")
+        else -> granted()
     }
 
-    override fun invoke(action: Any, context: ApplicationCall, subject: Any?): VoterResponseI {
-        if (!((action is Action || action is VoteVoter.Action) &&
-            (subject is ConstitutionSimple<*, *>? || subject is VoteEntity<*> || subject is CommentForView<*, *>))) return abstain()
+    fun <S : ConstitutionSimple<*, *>> canView(subjects: List<S>, citizen: CitizenI?): VoterResponse =
+        canAll(subjects) { canView(it, citizen) }
 
-        val user = context.user
-        if (action == Action.CREATE && user != null) {
-            return granted()
-        }
-
-        if (action == Action.VIEW) {
-            if (subject is ConstitutionSimple<*, *>) {
-                return if (subject.isDeleted()) denied("You cannot view a deleted constitution", "constitution.view.deleted")
-                else granted()
-            }
-            throw NoSubjectDefinedException(action as ActionI)
-        }
-
-        if (action == Action.DELETE && user is UserI && subject is ConstitutionSimple<*, *> && subject.createdBy.user.id == user.id) {
-            return granted()
-        }
-
-        if (action == Action.UPDATE && user is UserI && subject is ConstitutionSimple<*, *> && subject.createdBy.user.id == user.id) {
-            return granted()
-        }
-
-        if (action is VoteVoter.Action) return voteForVote(action, subject)
-
-        if (action is Action) {
-            throw NoRuleDefinedException(action)
-        }
-
-        return abstain()
+    fun canView(subject: ConstitutionSimple<*, *>, citizen: CitizenI?): VoterResponse = when {
+        subject.isDeleted() -> denied("You cannot view a deleted constitution", "constitution.view.deleted")
+        else -> granted()
     }
 
-    private fun voteForVote(action: VoteVoter.Action, subject: Any?): VoterResponseI {
-        if (action == VoteVoter.Action.CREATE && subject is VoteEntity<*>) {
-            val target = subject.target
-            if (target !is ConstitutionSimple<*, *>) {
-                return abstain()
-            }
-            if (target.isDeleted()) {
-                return denied("You cannot vote a deleted constitution", "constitution.vote.deleted")
-            }
-        }
-        return abstain()
+    fun canDelete(subject: ConstitutionSimple<*, *>, citizen: CitizenI?): VoterResponse = when {
+        citizen == null -> denied("You must be connected to delete constitution", "constitution.delete.notConnected")
+        subject.createdBy.id != citizen.id -> denied("You cannot delete the constitution of other citizen", "constitution.delete.otherCitizen")
+        else -> granted()
+    }
+
+    fun canUpdate(subject: ConstitutionSimple<*, *>, citizen: CitizenI?): VoterResponse = when {
+        citizen == null -> denied("You must be connected to update constitution", "constitution.update.notConnected")
+        subject.createdBy.id != citizen.id -> denied("You cannot update the constitution of other citizen", "constitution.update.otherCitizen")
+        else -> granted()
     }
 }