diff --git a/application/src/Security/SourceVoter.php b/application/src/Security/SourceVoter.php
new file mode 100644
index 0000000..ee035fd
--- /dev/null
+++ b/application/src/Security/SourceVoter.php
@@ -0,0 +1,62 @@
+<?php
+namespace App\Security;
+
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Authorization\Voter\Voter;
+use App\DBAL\Types\RightType;
+use App\Entity\Interfaces\SourceInterface;
+use App\DBAL\Types\LayerType;
+use App\Entity\Interfaces\UserInterface;
+
+/**
+ *
+ * @author kevinfrantz
+ * @see https://symfony.com/doc/current/security/voters.html
+ */
+class SourceVoter extends Voter
+{
+
+    /**
+     *
+     * @var string[] $attribute
+     * @var SourceInterface $subject
+     * {@inheritdoc}
+     * @see \Symfony\Component\Security\Core\Authorization\Voter\Voter::supports()
+     */
+    protected function supports($attribute, $subject)
+    {
+        return $this->checkInstance($subject) &&  $this->checkRight($attribute);
+    }
+    
+    //private function checkLayer(string $layer):bool{
+    //    return (in_array($right, array_keys(LayerType::getChoices())));
+    //}
+    
+    private function checkRight(string $right):bool{
+        return (in_array($right, array_keys(RightType::getChoices())));
+    }
+    
+    private function checkInstance($subject):bool{
+        return ($subject instanceof SourceInterface);
+    }
+
+    /**
+     * @todo add if father, that it should have all rights!
+     * @param string[] $attribute
+     * @param SourceInterface $subject
+     * @param TokenInterface $token
+     * {@inheritdoc}
+     * @see \Symfony\Component\Security\Core\Authorization\Voter\Voter::voteOnAttribute()
+     */
+    protected function voteOnAttribute($attribute, $subject, TokenInterface $token)
+    {
+        /**
+         * @var UserInterface $user
+         */
+        $user = $token->getUser();
+        return $subject->getNode()
+            ->getLaw()
+            ->isGranted($user->getSource()->getNode(), LayerType::SOURCE, $attribute);
+    }
+}
+