Police Service of Northern Ireland
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 Simon Byrne. The old Chief Constables were Sir Hugh Orde OBE,Sir Ronnie Flanagan OBE and Colin Cramphorn.