Organization of the New York City Police Department

The New York City Police Department (NYPD) is structured into numerous bureaus and units. As a whole, the NYPD is headed by the New York City Police Commissioner, a civilian administrator appointed by the Mayor of New York City, with the senior sworn uniformed member of the service titled ""Chief of Department"". The Police Commissioner appoints a number of Deputy and Assistant Commissioners. The Department is divided into nine bureaus, six of which are enforcement bureaus. Each enforcement bureau is sub-divided into sections, divisions, and units, and into patrol boroughs, precincts, and detective squads. Each Bureau is commanded by a Bureau Chief (such as the Chief of Patrol and the Chief of Housing). There are also a number of specialized units (such as the Operations Unit and CompStat) that are not part of any of the Bureaus and report to the Chief of the Department.