Federal law and regulations require that research data collected by the U.S. Department of Justice or by its grantees and contractors may only be used for statistical and research analysis. The applicable law and regulations may be found in the United States Code, 42 USC Section 3789g(a), and the Code of Federal Regulations, 28 CFR 22.
The dataset listings below provide access to all data files in ASCII/TXT format, and associated codebooks in PDF format. In some cases, SPS data setup files may also be provided. SPS files must be opened using SPSS data analysis software. All files are provided as compressed ZIP files to expedite download. Help with using BJS products.
|Courts and sentencing data|
|Law Enforcement data|
Annual Survey of Jails in Indian Country
Annual Survey of Jails
Census of Jail Facilities
To reduce respondent burden and improve data quality and timeliness, the Bureau of Justice Statistics (BJS) split the jail census into two parts: The Census of Jail Inmates was conducted with a reference date of June 30, 2005. The following spring it was followed by this enumeration, the Census of Jail Facilities, which collected data as of March 31, 2006. Previous jail enumerations were conducted in 1970 (ICPSR 7641), 1972 (ICPSR 7638), 1978 (ICPSR 7737), 1983 (ICPSR 8203), 1988 (ICPSR 9256), 1993 (ICPSR 6648), and 1999 (ICPSR 3318). The United States Census Bureau collected the data for the Bureau of Justice Statistics.
The 2006 Census of Jail Facilities gathered data from all jail detention facilities holding inmates beyond arraignment, a period normally exceeding 72 hours. Jail facilities were operated by cities and counties, by private entities under contract to correctional authorities, and by the Federal Bureau of Prisons (BOP). Excluded from the census were physically separate temporary holding facilities such as drunk tanks and police lockups that do not hold persons after being formally charged in court. Also excluded were state-operated facilities in Connecticut, Delaware, Hawaii, Rhode Island, Vermont, and Alaska, which have combined jail-prison systems. Fifteen independently operated jails in Alaska were included in the Census.
Census of Jail Inmates: Jurisdiction-Level Data
The Census of Jail Inmates is part of a series of data collection efforts aimed at studying the nation's locally-administered jails. To reduce respondent burden and improve data quality and timeliness, the Census was split into two data collections: the Census of Jail Inmates and the Census of Jail Facilities. The Census of Jail Inmates (CJI) collects data on jail jurisdictions' supervised populations, inmate counts and movements, and persons supervised in the community.
Census of State and Federal Adult Correctional Facilities
Conducted approximately every five to seven years, the Census of State and Federal Adult Correctional Facilities provides detailed information on the types of inmates housed, facility age and type, security level, court orders, programs, health and safety conditions, confinement space, employment, and operating costs. The Census furnishes the sampling frame for the nationwide Survey of Inmates In State and Federal Correctional Facilities.
Gender of Prisoners Admitted to State and Federal Institutions in the United States, 1926-1987
This data collection includes tabulations of annual adult admissions to federal and state correctional institutions by gender for the years 1926 through 1987. The two data files have identical structures: Part 1 includes information on male admissions, and Part 2 includes information on female admissions. The 3,348 cases in each part include one case for each of the 62 years of the collection for each of the following 54 categories: the 50 states, the District of Columbia, federal institutional totals, state cumulative totals, and United States totals (the sum of the federal and state cumulative totals).
Historical Statistics on Prisoners in State and Federal institutions, Yearend 1925-1986
This data collection supplies annual data on the size of the prison population and the size of the general population in the United States for the period 1925 to 1986. These yearend counts include tabulations for prisons in each of the 50 states and the District of Columbia, as well as the federal prisons, and are intended to provide a measure of the overall size of the prison population.
National Corrections Reporting Program
The National Corrections Reporting Program gathers data on prisoners entering and leaving the custody or supervision of state and federal authorities. The dataset is comprised of three types of data: prisoners who were admitted to prison (Part 1), released from prison (Part 2), or released from parole (Part 3). The National Prison Statistics (NPS) program was established in 1926 by the Bureau of the Census in response to a congressional mandate to compile national information on the populations confined in correctional institutions. This program described the characteristics and counts of prison inmates during each calendar year. Since its initiation, responsibility for this program has shifted among several agencies -- in 1950 it was transferred to the Federal Bureau of Prisons and to the Law Enforcement Assistance Administration in 1971. Since 1972, the Bureau of Census, under agreement with the Department of Justice, has had responsibility for compiling the statistical data. Census staff negotiates directly with each state, assembles and edits the data, and prepares the data for analysis and publication.
National Jail Census
This census provides information on county and municipal jails facilities in the United States and their administration. For all jails, the data include number of prisoners and their reason for being held, age and sex of prisoners, maximum sentence that could be served in the facility, facility capacity and age, types of security available, and operating expenditures. For jails in counties and municipalities with populations of 25,000 or more, data are supplied on quarterly jail population, age of cells, and availability of service facilities and programs for inmates.
Census of State Felony Courts
National Survey of Court Organization
Census of Law Enforcement Training Academies
Census of Publicly Funded Forensic Crime Laboratories
Census of State and Local Law Enforcement Agencies (CSLLEA), 2000
Law Enforcement Agency Identifiers Crosswalk
Law Enforcement Management and Administrative Statistics (LEMAS)
|National Crime Victimization Survey [Collection Year Record-Type Files]|
|The National Crime Victimization Survey (NCVS) Series, previously called the National Crime Survey (NCS), has been collecting data on personal and household victimization through an ongoing survey of a nationally-representative sample of residential addresses since 1972. The NCVS was designed with four primary objectives: (1) to develop detailed information about the victims and consequences of crime, (2) to estimate the number and types of crimes both reported and not reported to the police, (3) to provide uniform measures of selected types of crimes, and (4) to permit comparisons over time and types of areas. The survey categorizes crimes as "personal" or "property."
Personal crimes include rape and sexual assault, robbery, aggravated and simple assault, and purse-snatching/pocket-picking, while property crimes include burglary, theft, motor vehicle theft, and vandalism. Each respondent is asked a series of screen questions designed to determine whether she or he was victimized during the six-month period preceding the interview. A "household respondent" is also asked to report on crimes against the household as a whole (e.g., burglary, motor vehicle theft).
The data include type of crime, month, time, and location of the crime, relationship between victim and offender, characteristics of the offender, self-protective actions taken by the victim during the incident and results of those actions, consequences of the victimization, type of property lost, whether the crime was reported to police and reasons for reporting or not reporting, and offender use of weapons, drugs, and alcohol. Basic demographic information such as age, race, gender, and income is also collected, to enable analysis of crime against various subpopulations.