LAW on the Implementation of the Statute of the International Criminal Court and the Prosecution of Crimes against International Law of War and Humanitarian Law
VI APPREHENSION AND SURRENDER
Article 35
The decision rejecting the request of the International Criminal Court for the surrender of the person indicted, together with the case file, shall be forwarded ex officio to the Superior Court of the Republic of Croatia which shall, in a panel of five judges, consider the request and the first-instance decision, and shall issue a decision to confirm, repeal or alter the decision of the district court.
EDIT.