The National Crime Victimization Survey and National Incident-Based Reporting System: A complementary picture of crime in 2021 describes the similarities and differences between crime estimates derived from the National Crime Victimization Survey (NCVS), sponsored by BJS, and the FBI?s National Incident-Based Reporting System (NIBRS). The NCVS and NIBRS measure a set of crime offenses that overlap but are not identical, which leads to differences in estimates between the two data sources. The NCVS interviews victims on crimes both reported and not reported to police, while NIBRS collects data on crimes recorded by law enforcement agencies. Taken together, these two measures of crime provide a more comprehensive picture of crime in the United States.
The publication includes statistical estimates from both data sources; both show that the rate of violent crime in 2021 was not statistically different from the rate in 2020.
The National Crime Victimization Survey and National Incident-Based Reporting System: A complementary picture of crime in 2021 (NCJ 305180) was written by BJS Statisticians Rachel E. Morgan, Ph.D., and Erica L. Smith. The report, related documents, and additional information about BJS?s statistical publications and programs are available on the BJS website at bjs.ojp.gov.
The Bureau of Justice Statistics has released the 2017?2020 National Incident-Based Reporting System (NIBRS) Extract files through the National Archive of Criminal Justice Data (NACJD). NIBRS is a part of the FBI?s Uniform Crime Reporting Program (UCR) and is the nation's principal source of information on crimes and arrests recorded by participating law enforcement agencies. BJS developed the extract files to provide users access to NIBRS data that have been transformed into a format compatible for use with widely available analytic software. In these extract files, data elements from multiple NIBRS segment levels are?merged into a single concatenated file that can be analyzed at the level of the incident, the victim, or persons arrested.?
NIBRS collects annual data on 24 offense categories and includes information on?
- fatal and nonfatal violent crimes committed against victims of all ages
- property crimes committed against persons and businesses
- crimes against society, including animal cruelty, drug offenses, and weapon law violations
- demographic characteristics of victims, alleged offenders, and persons arrested
- whether offenders used a firearm or other weapon type
- hate crime incidents
- whether crimes resulted in arrest
- assaults and killings of law enforcement officers.
The Bureau of Justice Statistics of the U.S. Department of Justice is the principal federal agency responsible for collecting, analyzing, and disseminating reliable statistics on crime and criminal justice in the United States. Alexis R. Piquero is the director.
For more information on BJS's publications, data collections, data analysis tools, and funding opportunities,?visit?bjs.ojp.gov.
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