Pt. 1. Night watchmen, constables, and sheriffs: the role of early "police" in seventeenth-and eighteenth-century America.
Pt. 2. Rangers, marshals, and municipal police forces: the role of the police in the nineteenth century.
Pt. 3. Police reform and social and technological advances in the early twentieth century.
Pt. 4. Growing emphasis on police training, professionalism, efficiency, and ethics, 1930-1959.
Pt. 5. Social change and conflicting expectations of the police role, 1960-1978.
Pt. 6. Reexamining and redefining the role of the police, 1979-1989.
Pt. 7. The role of the police in the 1990s.