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
(1) Legal and natural persons are obligated to supply to the competent state authorities or institutions any information, documents, films or objects which may be important in investigating and prosecuting the crimes and in establishing the historic truth about a war and committed war crimes.
(2) In default of a law providing for the obligation specified in the foregoing paragraph, the Government of the Republic of Croatia can designate the competent state authority or institution by an act of ordinance.
1. States Parties shall, in accordance with the provisions of this Part and under procedures of national law, comply with requests by the Court to provide the following assistance in relation to investigations or prosecutions:
(d) The service of documents, including judicial documents;
(i) The provision of records and documents, including official records and documents;