Which of the following is NOT a use of police reports?

Police reports serve various functions in law enforcement, and while all the options mentioned have relevance in police work, the primary uses of police reports generally do not include field operations evaluation.

Field operations evaluation usually relies on performance metrics, crime statistics, and other operational data rather than on individual incident reports. Police reports are created primarily to document criminal activities, gather evidence, and provide an account of incidents, which means they are more directly used for purposes like fulfilling insurance requirements, aiding in officer training by serving as case studies, and collecting data about the officer's involvement or performance in specific incidents.

Thus, field operations evaluation is typically conducted using a broader analysis of overall departmental performance and crime trends, rather than the specifics contained within individual police reports. This distinction makes it clear why field operations evaluation would not be classified as a direct use of police reports.