Private policing in the United States

A private police force, or private police department, in the United States is a law enforcement agency that is: owned, operated, or otherwise controlled by a non-government entity such as a private corporation, or a law enforcement agency whose primary function is to provide contract based security services to private entities in a manner similar to private security companies. == Examples of private police entities == Alaska Railroad Police Department ASPCA Humane Law Enforcement Division (Defunct) Burlington Northern and Santa Fe Railway Police Department (BNSFPD) BWXT Police Department Canadian National Police Service (in the United States) Canadian Pacific Kansas City Police Service (CPKC Police Service) Catholic University of America Department of Public Safety Coal and Iron Police (Defunct) CSX Police Goodyear Tire & Rubber Company Police Department (defunct; converted to unsworn private security) Goodyear Atomic Corporation Police (defunct) Diocese of Greensburg Police Georgetown University Police Department Harvard University Police Department HeatherRidge Police Department, Gurnee Illinois (defunct; converted to unsworn private security) Norfolk Southern Railway Police Pinkerton National Detective Agency (Historical) Texas and Southwestern Cattle Raisers Association Special Rangers University of Chicago Police Department (UCPD) University of Southern California's Department of Public Safety Union Pacific Police Department Washington National Cathedral Police Wintergreen Police Department (Belongs to Wintergreen Resort) Yale University Police Department === Federal privately-staffed agencies === These agencies are operated by the federal government but are staffed by employees of private companies on a contract basis.

Source: Wikipedia — Private policing in the United States (CC BY-SA 4.0)