The United States police-rank model is generally quasi-military in structure.[1][2] A uniform system of insignia based on that of the US Army and Marine Corps is used to help identify an officer's seniority.[2][3]
^Berkley, G. E. (1969). "Democratic Policeman". National Criminal Justice Reference Service.
^ abMyers, Richard W. (2007). "From pyramids to network: Police structure and leadership in 2020". In Schafer, Joseph Andrew (ed.). Policing 2020: Exploring the Future of Crime, Communities, and Policing. Police Futurists International. p. 488.