diff --git a/application/src/Domain/SourceManagement/SourceRightManager.php b/application/src/Domain/SourceManagement/SourceRightManager.php
new file mode 100644
index 0000000..fb1630b
--- /dev/null
+++ b/application/src/Domain/SourceManagement/SourceRightManager.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace App\Domain\SourceManagement;
+
+use App\Entity\Meta\RightInterface;
+use App\Entity\Source\SourceInterface;
+use App\Exception\AllreadySetException;
+use App\Entity\Source\AbstractSource;
+use App\Entity\Meta\Law;
+use App\Exception\AllreadyDefinedException;
+use App\Exception\NotSetException;
+use Doctrine\Common\Collections\ArrayCollection;
+
+/**
+ * @author kevinfrantz
+ */
+final class SourceRightManager implements SourceRightManagerInterface
+{
+    /**
+     * @var SourceInterface
+     */
+    private $source;
+
+    /**
+     * @param SourceInterface $source
+     */
+    public function __construct(SourceInterface $source)
+    {
+        $this->source = $source;
+    }
+
+    /**
+     * @throws AllreadyDefinedException If the attribut is allready defined
+     */
+    private function checkRightAttributes(RightInterface $right): void
+    {
+        $attributes = ['source', 'law'];
+        foreach ($attributes as $attribut) {
+            try {
+                $right->{'get'.ucfirst($attribut)}();
+                throw new AllreadyDefinedException("The attribut \"$attribut\" is allready defined!");
+            } catch (\Error $error) {
+                //Expected
+            }
+        }
+    }
+
+    /**
+     * @return ArrayCollection|RightInterface[]
+     */
+    private function getRights(): ArrayCollection
+    {
+        return $this->source->getLaw()->getRights();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see \App\Domain\SourceManagement\SourceRightManagerInterface::addRight()
+     */
+    public function addRight(RightInterface $right): void
+    {
+        if ($this->getRights()->contains($right)) {
+            throw new AllreadySetException('The right was allready added.');
+        }
+        $this->checkRightAttributes($right);
+        $right->setSource($this->source);
+        $right->setLaw($this->source->getLaw());
+        $this->getRights()->add($right);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see \App\Domain\SourceManagement\SourceRightManagerInterface::removeRight()
+     */
+    public function removeRight(RightInterface $right): void
+    {
+        $right->setSource(new class() extends AbstractSource {
+        });
+        $right->setLaw(new Law());
+        if (!$this->getRights()->removeElement($right)) {
+            throw new NotSetException('The right to remove is not set.');
+        }
+    }
+}
diff --git a/application/src/Domain/SourceManagement/SourceRightManagerInterface.php b/application/src/Domain/SourceManagement/SourceRightManagerInterface.php
new file mode 100644
index 0000000..f17557f
--- /dev/null
+++ b/application/src/Domain/SourceManagement/SourceRightManagerInterface.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Domain\SourceManagement;
+
+use App\Entity\Meta\RightInterface;
+use App\Exception\AllreadySetException;
+use App\Exception\AllreadyDefinedException;
+use App\Exception\NotSetException;
+
+interface SourceRightManagerInterface
+{
+    /**
+     * @param RightInterface $right
+     *
+     * @throws AllreadySetException
+     * @throws AllreadyDefinedException
+     */
+    public function addRight(RightInterface $right): void;
+
+    /**
+     * @param RightInterface $right
+     *
+     * @throws NotSetException
+     */
+    public function removeRight(RightInterface $right): void;
+}
diff --git a/application/src/Exception/AllreadyDefinedException.php b/application/src/Exception/AllreadyDefinedException.php
new file mode 100644
index 0000000..66700d1
--- /dev/null
+++ b/application/src/Exception/AllreadyDefinedException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Exception;
+
+final class AllreadyDefinedException extends \Exception
+{
+}
diff --git a/application/src/Exception/NotSetException.php b/application/src/Exception/NotSetException.php
new file mode 100644
index 0000000..3a5e21b
--- /dev/null
+++ b/application/src/Exception/NotSetException.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Exception;
+
+use Symfony\Component\HttpKernel\Exception\ConflictHttpException;
+
+final class NotSetException extends ConflictHttpException
+{
+}
diff --git a/application/tests/Unit/Domain/SourceManagement/SourceRightManagerTest.php b/application/tests/Unit/Domain/SourceManagement/SourceRightManagerTest.php
new file mode 100644
index 0000000..1040127
--- /dev/null
+++ b/application/tests/Unit/Domain/SourceManagement/SourceRightManagerTest.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Unit\Domain\SourceManagement;
+
+use PHPUnit\Framework\TestCase;
+use App\Entity\Source\SourceInterface;
+use App\Domain\SourceManagement\SourceRightManagerInterface;
+use App\Entity\Source\AbstractSource;
+use App\Domain\SourceManagement\SourceRightManager;
+use App\Entity\Meta\RightInterface;
+use App\Entity\Meta\Right;
+use App\Entity\Meta\Law;
+use App\Exception\AllreadySetException;
+use App\Exception\NotSetException;
+use App\Exception\AllreadyDefinedException;
+
+class SourceRightManagerTest extends TestCase
+{
+    /**
+     * @var SourceInterface
+     */
+    private $source;
+
+    /**
+     * @var SourceRightManagerInterface
+     */
+    private $sourceRightManager;
+
+    /**
+     * @var RightInterface
+     */
+    private $right;
+
+    private function createSourceMock()
+    {
+        return new class() extends AbstractSource {
+        };
+    }
+
+    public function setUp(): void
+    {
+        $this->source = $this->createSourceMock();
+        $this->sourceRightManager = new SourceRightManager($this->source);
+        $this->right = new Right();
+    }
+
+    public function testLawException(): void
+    {
+        $this->right->setLaw(new Law());
+        $this->expectException(AllreadyDefinedException::class);
+        $this->sourceRightManager->addRight($this->right);
+    }
+
+    public function testSourceException(): void
+    {
+        $this->right->setSource($this->createSourceMock());
+        $this->expectException(AllreadyDefinedException::class);
+        $this->sourceRightManager->addRight($this->right);
+    }
+
+    public function testNotSetException(): void
+    {
+        $this->expectException(NotSetException::class);
+        $this->sourceRightManager->removeRight($this->right);
+    }
+
+    public function testAllreadSetException(): void
+    {
+        $this->sourceRightManager->addRight($this->right);
+        $this->expectException(AllreadySetException::class);
+        $this->sourceRightManager->addRight($this->right);
+    }
+
+    public function testRightAdd(): void
+    {
+        $this->assertNull($this->sourceRightManager->addRight($this->right));
+        $this->assertEquals($this->source, $this->right->getSource());
+        $this->assertEquals($this->right, $this->source->getLaw()->getRights()->get(0));
+        $this->assertEquals($this->right->getLaw(), $this->source->getLaw());
+        $this->assertNull($this->sourceRightManager->removeRight($this->right));
+        $this->assertNotEquals($this->source, $this->right->getSource());
+        $this->assertNotEquals($this->right->getLaw(), $this->source->getLaw());
+        $this->assertEquals(0, $this->source->getLaw()->getRights()->count());
+    }
+}