The handbook is designed to help State Planning Agencies (SPA, grantees of Federal funds) to develop or improve performance monitoring systems in order to monitor the implementation, operation, and results of the criminal justice projects they support. Such monitoring is required by the Law Enforcement Assistance Administration (LEAA) guidelines. The suggested procedures were obtained by telephone survey, review of materials, and visits to 55 SPAs and represent those practices which appeared most useful in meeting the LEAA guidelines. A chapter discussing monitoring requirements defines the nature and scope of the required monitoring, and describes its relationship to management and other types of evaluation. In another chapter the major problems confronting monitoring system managers are identified. The remaining four chapters detail how the manager can use the monitoring system to accomplish these four identified tasks: establishing agreement on information required by the user, establishing agreement with the subgrantee (unit of local or State government receiving Federal funds from the SPA for a criminal justice project) on what will be monitored, establishing the information flow, and assuring the utilization of monitoring information. Appended material (79 pages) includes detailed examples (identified by State) of procedures and materials used in monitoring criminal justice programs. (Author/MS)