diff --git a/front/views/Home.tsx b/front/views/Home.tsx
index 132457c..9a188bb 100644
--- a/front/views/Home.tsx
+++ b/front/views/Home.tsx
@@ -83,6 +83,9 @@ function SideMenu({
                 <div onClick={() => {location.pathname="/shareTactic"}}>
                     <p>Partager une tactique</p>
                 </div>
+                <div onClick={() => {location.pathname="/unshareTactic"}}>
+                    <p>Retirer le partage d'une tactique</p>
+                </div>
             </div>
         </div>
     )
diff --git a/public/api/index.php b/public/api/index.php
index da25013..d1f0ce4 100644
--- a/public/api/index.php
+++ b/public/api/index.php
@@ -18,7 +18,7 @@ use IQBall\Core\Model\AuthModel;
 use IQBall\Core\Model\TacticModel;
 
 function getTacticController(): APITacticController {
-    return new APITacticController(new TacticModel(new TacticInfoGateway(new Connection(get_database()))));
+    return new APITacticController(new TacticModel(new TacticInfoGateway(new Connection(get_database())), new AccountGateway(new Connection(get_database()))));
 }
 
 function getAuthController(): APIAuthController {
diff --git a/src/App/Controller/EditorController.php b/src/App/Controller/EditorController.php
index 4bdcfae..fe0aee2 100644
--- a/src/App/Controller/EditorController.php
+++ b/src/App/Controller/EditorController.php
@@ -76,7 +76,15 @@ class EditorController {
     public function openEditor(int $id, SessionHandle $session): ViewHttpResponse {
         $tactic = $this->model->get($id);
 
-        $failure = TacticValidator::validateAccess($id, $tactic, $session->getAccount()->getUser()->getId());
+        $ownerId = $session->getAccount()->getUser()->getId();
+
+        $ids = $this->model->getOwnerIdTacticShared($id, $session->getAccount()->getUser()->getId());
+
+        if(isset($ids)) {
+            $ownerId = $ids['owner'];
+        }
+
+        $failure = TacticValidator::validateAccess($id, $tactic, $ownerId);
 
         if ($failure != null) {
             return ViewHttpResponse::twig('error.html.twig', ['failures' => [$failure]], HttpCodes::NOT_FOUND);
diff --git a/src/App/Validator/TacticValidator.php b/src/App/Validator/TacticValidator.php
index 28985de..437b7f7 100644
--- a/src/App/Validator/TacticValidator.php
+++ b/src/App/Validator/TacticValidator.php
@@ -15,5 +15,4 @@ class TacticValidator {
         }
         return null;
     }
-
 }
diff --git a/src/Core/Gateway/TacticInfoGateway.php b/src/Core/Gateway/TacticInfoGateway.php
index 961045f..b1d8701 100644
--- a/src/Core/Gateway/TacticInfoGateway.php
+++ b/src/Core/Gateway/TacticInfoGateway.php
@@ -150,6 +150,35 @@ class TacticInfoGateway {
         return array_map(fn(array $row) => $this->rowToTacticInfo($row), $res);
     }
 
+
+    public function getOwnerIdTacticSharedTeam(int $tacticId, int $accountId) : ?array {
+        return $this->con->fetch(
+            "SELECT t.owner
+                    FROM Account a
+                    JOIN Member m on a.id = m.id_user
+                    JOIN TacticSharedTeam tt ON m.id_team = tt.id_team
+                    JOIN Tactic t ON tt.id_tactic = t.id
+                    WHERE tt.id_tactic = :tacticId AND m.id_user = :accountId",
+            [
+                ":tacticId" => [$tacticId, PDO::PARAM_INT],
+                ":accountId" => [$accountId, PDO::PARAM_INT]
+            ]
+        );
+    }
+
+    public function getOwnerIdTacticSharedAccount(int $tacticId, int $accountId) : ?array {
+        return $this->con->fetch(
+            "SELECT t.owner FROM Account a
+                    JOIN TacticSharedAccount ta ON a.id = ta.id_account
+                    JOIN Tactic t ON ta.id_tactic = t.id
+                    WHERE ta.id_tactic = :tacticId AND ta.id_account = :accountId",
+            [
+                ":tacticId" => [$tacticId, PDO::PARAM_INT],
+                ":accountId" => [$accountId, PDO::PARAM_INT]
+            ]
+        );
+    }
+
     /**
      * @param string $name
      * @param int $owner
diff --git a/src/Core/Model/TacticModel.php b/src/Core/Model/TacticModel.php
index 1669dfc..3dc2891 100644
--- a/src/Core/Model/TacticModel.php
+++ b/src/Core/Model/TacticModel.php
@@ -135,6 +135,61 @@ class TacticModel {
         return $allTactics;
     }
 
+    public function shareTacticToAccount(int $accountId, int $tacticId): int
+    {
+        return $this->users->shareTacticToAccount($accountId, $tacticId);
+    }
+
+    public function shareTacticToAccountMail(string $email, int $tacticId): ?int
+    {
+        $account = $this->users->getAccountFromMail($email);
+        var_dump($account);
+        $accountId = $account->getUser()->getId();
+        var_dump($accountId);
+        if(isset($accountId)) {
+            return $this->shareTacticToAccount($accountId, $tacticId);
+        }
+        return null;
+    }
+
+
+    public function unshareTactic(int $tacticId): int
+    {
+        return $this->users->unshareTactic($tacticId);
+    }
+
+    public function unshareTacticToAccount(int $tacticId, int $accountId): int
+    {
+        return $this->users->unshareTacticToAccount($tacticId, $accountId);
+    }
+
+    public function getOwnerIdTacticShared(int $tactidId, int $accountId) : ?array {
+        $ids = [];
+        $idT = $this->tactics->getOwnerIdTacticSharedTeam($tactidId, $accountId);
+        if(isset($idT)) {
+            foreach ($idT as $id) {
+                if(!in_array($id, $ids)) {
+                    array_push($ids, $id);
+                }
+            }
+        }
+
+        $idA = $this->tactics->getOwnerIdTacticSharedAccount($tactidId, $accountId);
+        if(isset($idA)) {
+            foreach ($idA as $id) {
+                if(!in_array($id, $ids)) {
+                    array_push($ids, $id);
+                }
+            }
+        }
+
+        if($ids != null) {
+            return $ids[0];
+        }
+        return null;
+    }
+
+
     /**
      * Update the name of a tactic
      * @param int $id the tactic identifier
@@ -165,32 +220,4 @@ class TacticModel {
         }
         return null;
     }
-
-    public function shareTacticToAccount(int $accountId, int $tacticId): int
-    {
-        return $this->users->shareTacticToAccount($accountId, $tacticId);
-    }
-
-    public function shareTacticToAccountMail(string $email, int $tacticId): ?int
-    {
-        $account = $this->users->getAccountFromMail($email);
-        var_dump($account);
-        $accountId = $account->getUser()->getId();
-        var_dump($accountId);
-        if(isset($accountId)) {
-            return $this->shareTacticToAccount($accountId, $tacticId);
-        }
-        return null;
-    }
-
-
-    public function unshareTactic(int $tacticId): int
-    {
-        return $this->users->unshareTactic($tacticId);
-    }
-
-    public function unshareTacticToAccount(int $tacticId, int $accountId): int
-    {
-        return $this->users->unshareTacticToAccount($tacticId, $accountId);
-    }
 }