English: FBI Police Officers provide protective security for FBI personnel and facilities and also perform law enforcement duties at and around FBI facilities. The primary mission of FBI Police Officers is to deter or respond to a terrorist attack, or other criminal acts, at and around FBI facilities. FBI Police Officers perform duties such as identification checks, roving patrols, and unscheduled perimeter and internal patrols. Officers also monitor electronic intrusion and communications systems. FBI Police Officers are stationed in Washington, D.C. (FBI Headquarters and the Washington Field Office); Quantico, VA (FBI Academy, FBI Laboratory); New York City (New York Field Office); and Clarksburg, WV (FBI Criminal Justice Information Services Division).