diff --git a/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php b/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
index ed2dd499d..697158bf8 100644
--- a/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
+++ b/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
@@ -110,8 +110,6 @@ class AuthorizationHelper
             return false;
         }
         
-        $role = ($attribute instanceof Role) ? $attribute : new Role($attribute);
-        
         foreach ($user->getGroupCenters() as $groupCenter){
             //filter on center
             if ($groupCenter->getCenter()->getId() === $entity->getCenter()->getId()) {
@@ -119,8 +117,7 @@ class AuthorizationHelper
                 //iterate on roleScopes
                 foreach($permissionGroup->getRoleScopes() as $roleScope) {
                     //check that the role allow to reach the required role
-                    if ($this->isRoleReached($role, 
-                          new Role($roleScope->getRole()))){
+                    if ($this->isRoleReached($attribute, $roleScope->getRole())) {
                         //if yes, we have a right on something...
                         // perform check on scope if necessary
                         if ($entity instanceof HasScopeInterface) {
@@ -149,12 +146,15 @@ class AuthorizationHelper
      * and optionnaly Scope
      * 
      * @param User $user
-     * @param Role $role
+     * @param string|Role $role
      * @param null|Scope $scope
      * @return Center[]
      */
-    public function getReachableCenters(User $user, Role $role, Scope $scope = null)
+    public function getReachableCenters(User $user, $role, Scope $scope = null)
     {
+        if ($role instanceof Role) {
+            $role = $role->getRole();
+        }
         $centers = array();
         
         foreach ($user->getGroupCenters() as $groupCenter){
@@ -162,8 +162,7 @@ class AuthorizationHelper
             //iterate on roleScopes
             foreach($permissionGroup->getRoleScopes() as $roleScope) {
                 //check that the role is in the reachable roles
-                if ($this->isRoleReached($role, 
-                      new Role($roleScope->getRole()))) {
+                if ($this->isRoleReached($role, $roleScope->getRole())) {
                     if ($scope === null) {
                         $centers[] = $groupCenter->getCenter();
                         break 1;
@@ -180,6 +179,30 @@ class AuthorizationHelper
         
         return $centers;
     }
+
+    /**
+     * Filter an array of centers, return only center which are reachable
+     *
+     * @param User $user The user
+     * @param array $centers a list of centers which are going to be filtered
+     * @param string|Center $role
+     */
+    public function filterReachableCenters(User $user, array $centers, $role): array
+    {
+        $results = [];
+
+        if ($role instanceof Role) {
+            $role = $role->getRole();
+        }
+
+        foreach ($centers as $center) {
+            if ($this->userCanReachCenter($user, $center, $role)) {
+                $results[] = $center;
+            }
+        }
+
+        return $results;
+    }
     
     /**
      * Return all reachable scope for a given user, center and role
@@ -191,8 +214,12 @@ class AuthorizationHelper
      * @param Center $center
      * @return Scope[]
      */
-    public function getReachableScopes(User $user, Role $role, Center $center)
+    public function getReachableScopes(User $user, $role, Center $center)
     {
+        if ($role instanceof Role) {
+            $role = $role->getRole();
+        }
+
         return $this->getReachableCircles($user, $role, $center);
     }
     
@@ -200,12 +227,15 @@ class AuthorizationHelper
      * Return all reachable circle for a given user, center and role
      * 
      * @param User $user
-     * @param Role $role
+     * @param string|Role $role
      * @param Center $center
      * @return Scope[]
      */
-    public function getReachableCircles(User $user, Role $role, Center $center)
+    public function getReachableCircles(User $user, $role, Center $center)
     {
+        if ($role instanceof Role) {
+            $role = $role->getRole();
+        }
         $scopes = array();
         
         foreach ($user->getGroupCenters() as $groupCenter){
@@ -215,9 +245,7 @@ class AuthorizationHelper
                 //iterate on roleScopes
                 foreach($permissionGroup->getRoleScopes() as $roleScope) {
                     //check that the role is in the reachable roles
-                    if ($this->isRoleReached($role, 
-                          new Role($roleScope->getRole()))) {
-
+                    if ($this->isRoleReached($role, $roleScope->getRole())) {
                         $scopes[] = $roleScope->getScope();
                     }
                 }
@@ -269,10 +297,10 @@ class AuthorizationHelper
      * @param Role $parentRole The role which should give access to $childRole
      * @return boolean true if the child role is granted by parent role
      */
-    protected function isRoleReached(Role $childRole, Role $parentRole)
+    protected function isRoleReached($childRole, $parentRole)
     {
         $reachableRoles = $this->roleHierarchy
-                ->getReachableRoles([$parentRole]);
+                ->getReachableRoleNames([$parentRole]);
         
         return in_array($childRole, $reachableRoles);
     }