Just like every other institution in the country, American policing system went through a long period of evolution to finally achieve the shape that it has today. And similar to other laws and institutions in America, even police recruitment methods were heavily borrowed from Britain. In the 19th century or at least for most part of it, American police was shaped after the British policing laws (O'Keefe, 2004). However the one important difference lied in the separation of national and local police bodies. Since in most western countries, police was under the direct control of the national government, it was easier to manage them from one central location and their development was also almost simultaneous. However that was not the case in the United States where every county and state had its own local police department, which is why development of sporadic and departments were created at different times according to the needs of the local communities. .

             The early police did not have a proper recruitment system. In the 19th century, American police consisted mainly of a night watchman who would patrol the streets at night and a constable who did the same during the day. Since there did not exist a recruitment system or policy, most watchmen were simply ordinary men recruited from the unemployed section of the society. While they were paid for their services, their job was modeled after the traditional night watchman who patrolled the cities as volunteers. But during this time, corruption was rampant and due to a very haphazard system of recruitment and training, cities were ill-managed (O'Keefe, 2004). However the reason this system endured for some time was because of the smaller sizes of communities. As cities grew, this system could no longer work. With rapid industrialization and ensuing increase in the crime rate, police was needed as a more coordinated unit. As cities grew, the scope of its responsibilities and functions expanded.