The Office of the Police Ombudsman for Northern Ireland (OPONI; Irish: Ombudsman Póilíní do Thuaisceart Éireann, Ulster-Scots: Owersman fur tha Polis o Norlin Airlann) is a non-departmental public body intended to provide an independent, impartial police complaints system for the people and police under the Police (Northern Ireland) Acts of 1998 and 2000.