Crime in the United States -- The history of law enforcement in the United States -- Local and trubal enforcement in the United States -- State law enforcement in the United States -- Federal and international law enforcement -- Private enforcement -- Ethics -- Types of policing -- Patrol types and specialized assignmnents -- Investigation -- Forensic science -- After arrest : taking the case to court -- Law enforcement under the United States Constitution -- Administration and leadership : community support, recruitment, selection, training and retention -- The future of law enformcement and its changing role.