1.The basic responsibility of the police is to fight crime, maintain order, and provide miscellaneous services to the public.
2.Most police officers regard detective work as "real" police work.
3.The process of investigating a crime involves several different steps performed by at least three different units within the police department: patrol officers, detectives, criminalistics technicians.
4.The preliminary investigation is normally the responsibility of the patrol officer
5.To obtain information about suspected criminal activity, the police make use of informants.
