Administrative Litigation Act Article 112

The defendant may, prior to the conclusion of the oral argument session, raise a counterclaim with the administrative court where the principal litigation is pending. However, no counterclaim can be raised for a litigation of revocation and a litigation demanding performance of certain obligations.The plaintiff cannot raise another counterclaim in response to the defendant's counterclaim.No counterclaim may be raised if it is subject to the exclusive jurisdiction of another administrative court or if it is neither related to the plaintiff's claim in the principal litigation nor related to the defendant's means of defense.The administrative court may dismiss a counterclaim without prejudice where it is raised by the defendant for purposes of delaying litigation.