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Incident-based statistics

Justice Statistics Improvement Program

National Incident-Based Reporting System (NIBRS) Implementation Program

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About NIBRS | Program activities | State-by-State summary | Related sites


About the National Incident-Based Reporting System (NIBRS)

The FBI's Uniform Crime Reporting (UCR) program, which began in 1929, collects information about crimes reported to the police. In 1982, BJS and the FBI sponsored a study of the UCR Program with the objective of revising it to meet law enforcement needs into the 21st century. A 5-year redesign effort to provide more comprehensive and detailed crime statistics resulted in the National Incident-Based Reporting System (NIBRS) which collects data on each reported crime incident. The UCR Program is currently being expanded to NIBRS.

Currently under the Summary system, law enforcement authorities aggregate the number of incidents by offense type monthly and report these totals to the FBI. Under incident-based reporting, agencies will provide an individual record for each crime reported.

The Summary UCR Program collects offense information on the eight Part I crimes of homicide, forcible rape, robbery, aggravated assault, burglary, larceny-theft, motor vehicle theft, and arson. It provides limited information about offenses, victims and offenders, and includes reported arrests for 21 additional crime categories. Under NIBRS, law enforcement authorities will provide information to the FBI on each criminal incident involving 46 specific offenses, including the 8 Part I crimes, that occur in their jurisdiction. Details about each incident include information about multiple victims and offenders. Arrest information on the 46 offenses plus 11 lesser offenses is also provided in NIBRS.

See the current level of UCR participation by State as of December, 2003.

For additional information, see also:

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Program Activities

The objective of this program was to improve the quality of crime statistics in the United States by implementing the National Incident-Based Reporting System (NIBRS). This program provided funding to States in 2001 (in conjunction with units of Local government) and tribes that wanted to participate in the FBI's new approach to uniform crime reporting, NIBRS. Grant funds have not been available since 2001.

The NIBRS awards were made to States applying on behalf of one or more cities or counties in the State, regardless of whether the State maintained a UCR program. Funds were also provided for use at the State level, provided that the State also received funds on behalf of a city or county jurisdiction. This program was funded under the Crime Identification Technology Act of 1998, P.L.105-251 (CITA).

Technical assistance and research

BJS supports additional technical assistance, research, and training to assist jurisdictions in implementing NIBRS-compliant systems and analyzing NIBRS data.

  • Overall NIBRS support, including technical assistance for systems implementation and data analysis, is provided by SEARCH, The National Consortium for Justice Information and Statistics. Assistance includes onsite visits, web assistance, guidance via telephone and email, and training seminars. A website has been created and will be enhanced to include State and local profiles of NIBRS activity. Classes will be conducted to train practitioners on programs suitable for analysis of NIBRS data. The technical assistance program builds upon extensive previous efforts to review ongoing NIBRS activity and to identify impediments to NIBRS implementation and recommend solutions to these problems.

  • The Incident-Based Reporting Resource Center, an online resource for incident-based crime data, was established by the Justice Research and Statistics Association with BJS support. The Center seeks to put practical analytical information and tools into the hands of analysts who want to work with incident-based data, and to provide a forum where analysts can exchange information and ideas about using incident-based data.

  • BJS annually sponsors the American Statistical Association (ASA) and BJS Statistical Methodological Research Program through the ASA Committee on Law and Justice Statistics. This program is designed to encourage the creative and appropriate use of criminal justice data to inform substance and methodological issues. Special funding has been obtained specifically for researching topics pertaining to NIBRS. Awards are generally for a one or two year period and may be as high as $50,000. For more information, including potential NIBRS research topics and evaluation criteria, go to the Solicitation for Proposals on the ASA website.

  • Through the State Justice Statistics Program for Statistical Analysis Centers (SACs), BJS encourages and provides funding to States to do statistical analysis using incident-based crime data that are compatible with NIBRS.

  • Under BJS sponsorship, the Police Executive Research Forum (PERF) conducted a project to stimulate NIBRS participation by law enforcement agencies. PERF interviewed key information systems/data management personnel and personnel from a variety of other units within law enforcement agencies, gathering detailed information on departmental information systems and the varying levels of departmental effort to switch to an IBR system compatible with the FBI’s requirements. PERF presented this and other information at the National Symposium: Data Systems for Policing in the 21st Century on July 19-20, 2001. The symposium focused on implementation of IBR systems compatible with the FBI’s reporting requirements for NIBRS, and using NIBRS as an analytic crime-fighting tool. PERF is compiling these publications and other materials into an information resource manual, designed to serve as an Incident-Reporting System Resource Guide for law enforcement departments making the transition to an incident-based system compatible with the FBI’s reporting requirements. Under its own initiative, PERF hosted a 2nd Annual Conference on Technology & Information Systems for Policing in the 21st Century on July 11-13, 2002 in Chicago.

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State-by-State summary

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Page last revised on March 1, 2007