The Source for Crime and Justice Data

Uniform Crime Reporting Program Data Series

Investigator(s): Federal Bureau of Investigation

Since 1930, the Federal Bureau of Investigation (FBI) has compiled the Uniform Crime Reports (UCR) to serve as periodic nationwide assessments of reported crimes not available elsewhere in the criminal justice system. With the 1977 data, the title was expanded to Uniform Crime Reporting Program Data. Each year, participating law enforcement agencies contribute reports to the FBI either directly or through their state reporting programs. ICPSR archives the UCR data as five separate components: (1) summary data, (2) county-level data, (3) incident-level data (National Incident-Based Reporting System [NIBRS]), (4) hate crime data, and (5) various, mostly nonrecurring, data collections. Summary data are reported in four types of files: (a) Offenses Known and Clearances by Arrest, (b) Property Stolen and Recovered, (c) Supplementary Homicide Reports (SHR), and (d) Police Employee (LEOKA) Data (Law Enforcement Officers Killed or Assaulted). The county-level data provide counts of arrests and offenses aggregated to the county level. County populations are also reported. In the late 1970s, new ways to look at crime were studied. The UCR program was subsequently expanded to capture incident-level data with the implementation of the National Incident-Based Reporting System. The NIBRS data focus on various aspects of a crime incident. The gathering of hate crime data by the UCR program was begun in 1990. Hate crimes are defined as crimes that manifest evidence of prejudice based on race, religion, sexual orientation, or ethnicity. In September 1994, disabilities, both physical and mental, were added to the list. The fifth component of ICPSR's UCR holdings is comprised of various collections, many of which are nonrecurring and prepared by individual researchers. These collections go beyond the scope of the standard UCR collections provided by the FBI, either by including data for a range of years or by focusing on other aspects of analysis.

NACJD has produced resource guides on UCR and on NIBRS data.

Most Recent Studies

Related Publications ?

Most Recent Publications

2015
Ansari, Sami,  He, Ni . Convergence revisited: A multi-definition, multi-method analysis of the UCR and the NCVS crime series (1973-2008). Justice Quarterly. 32, (1), 1-31.
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2015
Schwartz, Jennifer,  Conover-Williams, Meredith,  Clemons, Katie . Thirty years of sex stratification in violent crime partnerships and groups. Feminist Criminology. 10, (1), 60-91.
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2014
Aldford, Catherine . How Medical Marijuana Laws Affect Crime Rates. .
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2014
Anderson, James F. Criminological Theories: Understanding Crime in America. Burlington, MA: Jones and Bartlett Learning.
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2014
Aneja, Abhay,  Donohue, John J., III,  Zhang, Alexandria, . The Impact of Right to Carry Laws and the NRC Report: The Latest Lessons for the Empirical Evaluation of Law and Policy. Stanford Law and Economics Olin Working Paper No. 461. .
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2014
Bell, Brian,  Bindler, Anna,  Machin, Stephen . Crime Scars: Recessions and the Making of Career Criminals. CEP Discussion Paper No 1284. London, UK: London School of Economics and Political Science, Centre for Economic Performance.
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2014
Bindler, Anna . Still Unemployed, What Next? Crime and Unemployment Duration. Job Market Paper. .
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2014
Brasier, Kathryn,  Davis, Lisa,  Glenna, Leland,  Kelsey, Tim,  McLaughlin, Diane,  Schafft, Kai,  Babbie, Kristin,  Biddle, Catherine,  Delessio-Parson, Anne,  Rhubart, Danielle . The Marcellus Shale Impacts Study: Chronicling Social and Economic Change in North Central and Southwest Pennsylvania. Harrisburg, PA: Center for Rural Pennsylvania.
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2014
Browne, Angela,  Williams, Kirk R.,  Parker, Robert Nash,  Strom, Kevin J.,  Barrick, Kelle . Youth homicide in the United States. Encyclopedia of Criminology and Criminal Justice. New York, NY: Springer.
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2014

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