diff --git a/src/controllers/01-branch-user-controller.ts b/src/controllers/01-branch-user-controller.ts
index c1ad85e..7e92692 100644
--- a/src/controllers/01-branch-user-controller.ts
+++ b/src/controllers/01-branch-user-controller.ts
@@ -280,25 +280,12 @@ export class BranchUserController extends Controller {
     @Path() userId: string,
   ) {
     const branch = await prisma.branch.findUnique({
-      include: {
-        user: {
-          where: { userId: req.user.sub },
-        },
-      },
+      include: branchRelationPermInclude(req.user),
       where: { id: branchId },
     });
 
-    if (
-      !globalAllow(req.user) &&
-      branch?.createdByUserId !== req.user.sub &&
-      !branch?.user.find((v) => v.userId === req.user.sub)
-    ) {
-      throw new HttpError(
-        HttpStatus.FORBIDDEN,
-        "You do not have permission to perform this action.",
-        "noPermission",
-      );
-    }
+    await permissionCheck(req.user, branch);
+
     await prisma.branchUser.deleteMany({
       where: { branchId, userId },
     });