II. PROSECUTION IN REPUBLIC OF CROATIA
POLICE ORGANIZATION
Article 15
(1) At the Ministry of the Interior a Department competent for the war crimes shall perform the activities connected to the investigating of criminal offences referred to in Article 1 of this Law and its perpetrators, and shall perform the activities of cooperation with the International Criminal court within the competence of police. The department consists of police officers with the appropriate experience within investigating of the most serious criminal offences.
(2) The police officers of the Department competent for the war crimes shall conduct field investigations and take other necessary actions, and coordinate and direct the work of other police officers engaged in the investigations of criminal offences referred to in Article 1 of this Law and detention of perpetrators or in the cooperation with the International Criminal Court.
Other forms of cooperation
Taking of evidence - authority - ICC proceedings
Taking of evidence - national procedures for ICC proceedings
EDIT.