The Police Service of Northern Ireland (PSNI) () is the police service that covers Northern Ireland. It was started on 4 November 2001. The old police service for Northern Ireland was the Royal Ulster Constabulary. The service is based in Cherryvalley, east Belfast. The current Chief Constable is Sir Hugh Orde OBE. The old Chief Constables were Sir Ronnie Flanagan OBE and Colin Cramphorn.