Uniform Crime Reporting Program Data: National Incident-Based Reporting System, 2012 (ICPSR 35035)
Alternate Title: NIBRS, 2012
Principal Investigator(s): United States Department of Justice. Federal Bureau of Investigation
The National Incident-Based Reporting System (NIBRS) is a part of the Uniform Crime Reporting Program (UCR), administered by the Federal Bureau of Investigation (FBI). In the late 1970s, the law enforcement community called for a thorough evaluative study of the UCR with the objective of recommending an expanded and enhanced UCR program to meet law enforcement needs into the 21st century. The FBI fully concurred with the need for an updated program to meet contemporary needs and provided its support, formulating a comprehensive redesign effort. Following a multiyear study, a "Blueprint for the Future of the Uniform Crime Reporting Program" was developed. Using the "Blueprint," and in consultation with local and state law enforcement executives, the FBI formulated new guidelines for the Uniform Crime Reports. The National Incident-Based Reporting System (NIBRS) was implemented to meet these guidelines. NIBRS data are archived at ICPSR as 13 separate data files per year, which may be merged by using linkage variables. The data focus on a variety of aspects of a crime incident. Part 4, Administrative Segment, offers data on the incident itself (date and time). Each crime incident is delineated by one administrative segment record. Also provided are Part 5, Offense Segment (offense type, location, weapon use, and bias motivation), Part 6, Property Segment (type of property loss, property description, property value, drug type and quantity), Part 7, Victim Segment (age, sex, race, ethnicity, and injuries), Part 8, Offender Segment (age, sex, and race), and Part 9, Arrestee Segment (arrest date, age, sex, race, and weapon use). The Batch Header Segment (Parts 1-3) separates and identifies individual police agencies by Originating Agency Identifier (ORI). Batch Header information, which is contained on three records for each ORI, includes agency name, geographic location, and population of the area. Part 10, Group B Arrest Report Segment, includes arrestee data for Group B crimes. Window Segments files (Parts 11-13) pertain to incidents for which the complete Group A Incident Report was not submitted to the FBI. In general, a Window Segment record will be generated if the incident occurred prior to January 1 of the previous year or if the incident occurred prior to when the agency started NIBRS reporting. As with the UCR, participation in NIBRS is voluntary on the part of law enforcement agencies. The data are not a representative sample of crime in the United States.
These data are freely available.
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United States Department of Justice. Federal Bureau of Investigation. Uniform Crime Reporting Program Data: National Incident-Based Reporting System, 2012. ICPSR35035-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research[distributor], 2014-06-03. http://doi.org/10.3886/ICPSR35035.v1
Persistent URL: http://doi.org/10.3886/ICPSR35035.v1
This study was funded by:
- United States Department of Justice. Federal Bureau of Investigation
- United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics
Scope of Study
Subject Terms: arrests, crime, crime rates, crime reporting, law enforcement agencies, national crime statistics (USA), offenders, offenses, Uniform Crime Reports, victims, violent crime
Smallest Geographic Unit: city
Geographic Coverage: United States
Date of Collection:
Unit of Observation: Crime incident
Universe: Law enforcement agencies in the United States participating in the National Incident-Based Reporting System.
Data Types: event/transaction data
Data Collection Notes:
Starting with the 2012 data, some offense, location, bias motivation, race, and ethnicity codes have been added or modified to include recent Advisory Policy Board (APB) and Office of Management and Budget (OMB) policy mandates to the UCR Program related to Human Trafficking, Hate Crime, and Race and Ethnicity information.
Time Method: Cross-sectional
- Performed consistency checks.
- Created variable labels and/or value labels.
- Checked for undocumented or out-of-range codes.
Original ICPSR Release: 2014-06-03
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