The Criminal Investigation Process

Volume II: Survey of Municipal and County Police Departments

by Jan M. Chaiken


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Second in a series of volumes resulting from a two-year study of police criminal investigation practices and their impacts, this report describes a survey undertaken of all police departments with 150 or more employees in 1972, or whose jurisdiction had a 1970 population over 100,000. Survey data were obtained from 153 of the 300 such departments. The report describes how the survey was conducted and the patterns of response, and summarizes the information obtained in answer to questions on the survey instrument concerning the number of officers assigned to the investigative function; the organization, training, and supervision of investigative personnel; the role of patrol officers and nonpolice criminal justice agencies in the investigative process; and the availability of technical resources used to assist investigations, such as evidence technicians and information systems. The relationships found among various characteristics of the departments that responded to the survey are explored. A copy of the survey instrument is included.

This report is part of the RAND Corporation Report series. The report was a product of the RAND Corporation from 1948 to 1993 that represented the principal publication documenting and transmitting RAND's major research findings and final research.

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