Croatia have a three @-@ tiered , independent judicial system governed by the Constitution of Croatia and national legislation enacted by the Sabor . The Supreme Court ( Croatian : Vrhovni sud ) is the highest court of appeal in Croatia . There are other specialised courts in Croatia — commercial courts and the Superior Commercial Court , misdemeanour courts , the Superior Misdemeanour ( criminal ) Court , the Administrative Court and the Croatian Constitutional Court ( Croatian : Ustavni sud ) . The State Attorney 's Office represent the state in legal proceedings .