Nthe 1970s, police departments created small units consisting of patrol officers, investigators, and supervisors, assigning them to neighborhoods on a long-term basis in order to increase the exchange of information and improve cooperation, in an effort called

team policing

Explanation:

Team policing:-

Team policing was an effort made by the police department which was intended to improve the police community relations as well as the police effectiveness in crime control. It can be done by assigning a particular group of the police officers permanently to a specific geographic area which is considered to be neighborhood.

Thus, according to the question, the effort that the police departments in the 1970s creating units in the neighborhoods is called team policing.

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