It has become commonplace to say that we are living in a world of rapidly changing social and economic conditions, which have rendered traditional methods of policing obsolete, or have required important adjustments in them. Reformation of older techniques and the adoption of new enforcement methods symbolize the prevailing trends of the last three decades. Older functions have assumed specialty roles in their own right. New functions, such as traffic flow regulations, traffic accident reduction anId juvenile delinquency correction, are taking accredited places in the police program. Structurally, police departments have broadened to make way for the development of new and important auxiliary functions, as for example, communications and records. Those demands, in turn, require leaders schooled in the broad phases of administration and a personnel skilled in the specialized fields of policing. A new personnel tradition, based upon intelligence, has become indispensable to the protection of life and property.
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