maintaining order, usually found in communities with a declining industrial base, and a blue-collar, mixed ethnic/racial population. This form of policing is implicitly less pro-active than other styles, and certain offenses may be "overlooked" on a variety of social, legal, and cultural grounds as long as public order is maintained. Cole and Smith comment the broad discretion exercised in this style of policing can result in charges of discrimination when it appears police treatment of different groups results in the perception that some groups get better treatment than others. Legalistic Emphasizes law enforcement and professionalism. This is usually found in reform-minded cities, with mixed socioeconomic composition. Officers are expected to generate a large number of arrests and citations and act as if there were a single community standard for conduct, rather than different standards for different groups. However, the fact that certain groups are more likely to have law enforcement contact means this strict enforcement of laws may seem overly harsh on certain groups. Service Emphasizes the service functions of police work, usually found in suburban, middle-class communities where residents demand individual treatment. Police in homogeneous communities can view their work as protecting their citizens against "outsiders", with frequent but often informal interventions against community members. The uniform make-up of the community means crimes are usually more obvious, and therefore less frequent, leaving police free to deal with service functions and traffic control. Wilson's study applies to police behavior for the entire department over time. At any given time, police officers may be acting in a watchman, service, or legalistic function by the nature of what they are doing at the time, their temperament, or their mood at the time. Individual officers may also be inclined to one style or another, regardless of the supervisor or citizen demands. Community-oriented policing is a shift in policing practices in the U.S. that moved away from standardization and towards a more preventative model where police actively partner with the community it serves. History Early colonial policing Policing in what would become the United States of America arose from the law enforcement systems in European countries, particularly the ancient English common law system. This relied heavily on citizen volunteers, as well as watch groups, constables, sheriffs, and a conscription system known as posse comitatus similar to the militia system. An early night watch formed in Boston in 1631, and in 1634 the first U.S.