The United Nations Mission in Bosnia and Herzegovina (UNMIBH) was an international organization formed under the United Nations Security Council Resolution 1035 on 21 December 1995. It completed its mandate on 31 December 2002, when it was succeeded by the European Union Police Mission in Bosnia and Herzegovina.

From the UNIMBH website:

UNMIBH’s mandate is to contribute to the establishment of the rule of law in Bosnia and Herzegovina by assisting in reforming and restructuring the local police, assessing the functioning of the existing judicial system, and monitoring and auditing the performance of the police and others involved in the maintenance of law and order.