Chicago Police Department

The Chicago Police Department, also known as the CPD, is the principal law enforcement agency of Chicago, Illinois, under the jurisdiction of the mayor of Chicago. It is the largest police department in the U.S. Midwest and the second largest in the nation (with 13,619 sworn officers and 2,625 other employees as of 2003), and one of the oldest organized police forces in the world. Currently, the Chicago Police Department is nationally accredited by the Commission on Accreditation for Law Enforcement Agencies.

Early years

When the town of Chicago was incorporated to become a city in 1837, provisions were made to elect an officer called the High Constable. He in turn would appoint a Common Constable from each of the six city wards. In 1855, the newly elected city council passed ordinances to formally establish the Chicago Police Department. Chicago was divided into three police precincts, each served by a station house. Station No. 1 was located in a building on State Street between Lake and Randolph streets. Station No. 2 was on West Randolph Street near Des Plaines Street. Station No. 3 was on Michigan Avenue near Clark Street. In 1860, the detective forces were established to investigate and solve crimes.

Related Topics:
1837 - 1855 - 1860

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In 1861, the Illinois General Assembly passed a law creating a police board to become an executive department of Chicago autonomous of the mayor. The mayor was effectively stripped of his power to control the Chicago Police Department. Authority was given to three police commissioners. The commissioners created the office of superintendent to be the chief of police. The title is again in use today.

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In 1875, the Illinois General Assembly found that the police commissioners were unable to control rampant corruption within the Chicago Police Department. The legislature passed a new law returning power over the police to the mayor. The mayor was allowed to appoint a single police commissioner with the advice and consent of the city council.

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