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The Uniform Crime Reporting (UCR) program compiles official data on crime in the United States, published by the Federal Bureau of Investigation (FBI). UCR is "a nationwide, cooperative statistical effort of nearly 18,000 city, university and college, county, state, tribal, and federal law enforcement agencies voluntarily reporting data on crimes brought to their attention".
As of October 31, 2020, 8,742 law enforcement agencies representing 48.9 percent of the population were reporting NIBRS data to the UCR program. At that time, 43 states were NIBRS-certified as having records management systems that meet the FBI's requirement for collecting crime data according to established technical specifications. [FBI]. [3]
The National Crime Victimization Survey (NCVS), administered by the US Census Bureau under the Department of Commerce, is a national survey of approximately 49,000 [1] [contradictory] to 150,000 [2] households - with approximately 240,000 [3] persons aged 12 or older - twice a year in the United States, on the frequency of crime victimization, as well as characteristics and consequences of ...
Comparisons between official statistics, such as the Uniform Crime Reports and the National Incident-Based Reporting System, and victim studies, such as the National Crime Victimization Survey (NCVS), attempt to provide an insight into the amount of unreported crime. [4] [5]
The NCVS yields data on individual victims, offenders, and incidents. The survey is designed to represent nationwide levels of crime, but cannot provide crime estimates for cities or states. [ 8 ] Surveys such as these also obtain information that has not been reported to authorities and also preserves anonymity, eliciting more responses.
A CTS-based study would ideally include data from respondents and their partners/primary caregivers in order to investigate the degree of symmetry or asymmetry between their responses. The CTS can be administered through an in-person interview, telephone interview, self-administered questionnaire, and/or computer-administered questionnaire.
The Combined DNA Index System (CODIS) is the United States national DNA database created and maintained by the Federal Bureau of Investigation.CODIS consists of three levels of information; Local DNA Index Systems (LDIS) where DNA profiles originate, State DNA Index Systems (SDIS) which allows for laboratories within states to share information, and the National DNA Index System (NDIS) which ...
In 1978, Michael Hindelang compared data from the National Crime Victimization Survey (then known as the National Crime Survey, or NCS) to data from the Uniform Crime Reports, both from 1974. He found that NCS data generally agreed with UCR data in regards to the percent of perpetrators of rape, robbery, and assault who were black. [59]