ASIS International (ASIS) Professional Certified Investigator Practice Exam

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Where was the first detective unit established in the United States?

  1. New York

  2. Chicago

  3. Philadelphia

  4. Los Angeles

The correct answer is: Philadelphia

The first detective unit in the United States was established in Philadelphia in 1833. This marked a significant development in the history of law enforcement in America, as it introduced a specialized force dedicated to investigating crimes rather than merely maintaining public order. The creation of a detective unit allowed for a more systematic approach to solving crimes, which contributed to the advancement of criminal investigations and the professionalization of policing. Philadelphia's early adoption of a detective unit set a precedent for other major cities, influencing how investigations were structured and conducted across the nation in subsequent years.

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