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National Incident-Based Reporting System (NIBRS)

Data Collection Status
Latest Data Available
Data Experts
Erica Smith, BJS Unit Chief
Andrea Gardner, BJS Statistician
Kimberly Martin, Ph.D., BJS Statistician
Collection Period



Since 1929, the Uniform Crime Reporting (UCR) Program has collected information about crimes known to law enforcement and arrests. The traditional UCR Summary Reporting System (SRS) collects monthly counts of the number of crimes known to law enforcement from thousands of agencies throughout the United States. Information on the number of crimes known is recorded for eight offense categories, based on the most serious offense reported for each crime incident:

  • murder and nonnegligent manslaughter
  • rape
  • robbery
  • aggravated assault
  • burglary
  • larceny-theft
  • motor vehicle theft
  • arson

In addition, the SRS collects counts of arrests for 28 offense categories broken down by the age, sex, and race of the arrestee. 

In 1982, BJS and the FBI sponsored a study of the UCR Program with the objective of revising the program to meet the changing needs of law enforcement moving into the 21st century. This effort to provide more comprehensive and detailed crime statistics resulted in a report entitled, Blueprint for the Future of the Uniform Crime Reporting Program, which proposed the development and implementation of a new data collection mode, the National Incident-Based Reporting System (NIBRS).

Date Created: May 31, 2009