This system can be easily adapted for use by any small-to medium-size law enforcement agency. Although a noncomputer system, it is designed for compatibility with various processing techniques which include manual key-sorting, mechanical sorting through unit-record electrical accounting machines, and computer processing. Crime, accident, and incident-related data may be displayed by any of a number of characteristics. Internal summary reports and periodic reports to the U.S. Department of Justice and the State of California can also be produced. The system is composed of four operationally based subsystems. The data collection subsystem covers the actions required by police personnel from the initial notification of an event through report preparation, review, and submittal to the records bureau. Major features of this subsystem are event recording by the dispatcher, report control through the matching of formal field reports elimination of the requirement for field officers to record all of their activities on the daily activity sheet, and assignment of daily report preparation to the watch commanders. The data extraction and storage subsystem design covers all those actions required from the point at which the records bureau receives field data to the point where these data have been punched into unit records cards. The reporting and information use subsystem design includes all information required to retrieve data elements from storage for use in the preparation of reports and for responding to specific inquiries. The audit subsystem is designed to evaluate the integrity of the system from the standpoints of data quality and procedural compliance. Each subsystem is described in a separate section of the report, and numerous sample report forms are illustrated. A glossary of terms and system diagrams are also provided.