The Oakland Police Department (OPD) is a law enforcement agency responsible for policing the city of Oakland, California, United States. As of May 2021, the department employed 709 sworn officers and 371 civilian employees. The department is divided into 5 geographical divisions policing Oakland's 78 square miles and population of 420,000. The OPD receives 550,000 annual calls for service, and responds to over 250,000 law enforcement incidents. The Oakland Police Department was formed in 1853 by Oakland founder and first Mayor Horace W. Carpentier. Oakland had been incorporated as a town by the state legislature in 1852, and with its rapid expansion, Carpentier felt the need to organize a city government with a police force to provide regular law enforcement. Heretofore, vigilante justice had been the norm. On October 15, 1853, the town council appointed John McCann as the first town marshal, assisted by two deputies and operating out of a small waterfront building which also housed the police court and jail. Oakland's growth continued when it became the western terminus of the transcontinental railroad in 1869. It developed into a major port and industrial center, including the manufacture of ships and, later, automobiles. By 1872, the Alameda County Courthouse opened at 4th and Broadway and cases deemed too serious for police court were tried there. By 1874, the department was headquartered in the new city hall located at 14th and Washington. By 1886, the department had installed telephone call boxes for foot patrolmen and purchased horse-drawn wagons for patrol, which, according to the Oakland Review, were the first such conveyances used by police in California. The wagons also doubled as ambulances. More information...
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