Annual Survey of Jails in Indian Country
The survey of all known confinement facilities operated by tribal authorities or the Bureau of Indian Affairs (BIA), provides data on number of inmates and facility characteristics and needs. Variables describe each facility, including rated capacity, number of adult inmates, number of juveniles held, number of inmates held by sex and conviction status on June 30, number of admissions and discharges in the last 30 days, number of inmate deaths, the peak population during June, facility crowding, and renovation and building plans.

Annual Survey of Jails
This collection provides annual data on jail populations across the nation. These data are used to track growth in the number of jails and their capacities nationally, changes in the demographics of the jail population (including sex, race, and adult or juvenile status), supervision status of persons held, prevalence of crowding issues, and a count of non-United States citizens within the jail population.

In its statistics on jails, BJS reports data for jail jurisdictions. A jail jurisdiction (typically a county) represents the entity that is responsible for managing the jail facilities under its authority. Jail jurisdictions may contain multiple facilities and/or multiple facility operators (i.e., both county and privately operated facilities). In the Annual Survey of Jails, BJS obtains data from jails responding or reporting units. For example, four reporting units in Allegheny County (PA) represent a single jail jurisdiction.  The codebook describes the steps taken to aggregate the data into jurisdiction level:

Census of State Felony Courts
The purpose of this study was to provide a current listing of all felony courts in this country and to provide a universe from which a sample of courts could be selected based on felony caseload. The study includes information on all state felony courts in the United States, including the number of cases filed and disposed by conviction, acquittal, dismissal, or other means. Court administrators were asked to indicate the manner in which cases filed and disposed were counted, such as by defendant, charge, or indictment information. The total number of cases disposed during the period was also collected for juvenile delinquents and for traffic offenses (moving violations) where applicable. Finally, data were gathered on whether felonies reduced to misdemeanors were included in the felony count and whether lower courts in the jurisdiction accepted guilty pleas to felonies.

National Survey of Court Organization
The purpose of this study was to document the existing organization of courts in the 50 states and the District of Columbia as of 1971-1972. The survey covers all appellate courts, courts of general jurisdiction, special courts, and other courts of limited jurisdiction. Excluded were justices of the peace and similar magistrates whose compensation is solely on a direct fee basis, and courts of limited or special jurisdiction located in municipalities or townships with a 1960 population of less than 1,000. The data for courts include information on the organization of the court, geographic location, type of court, level of government administering the court, number, types, and full- or part-time status of judicial and other personnel, method of appealing cases, location of court records, and types of statistics. Court subdivision variables cover organization of the courts, geographic location, type of court, level of government administering the court, types of jurisdiction, percentage of judges' time spent on types of cases, availability of jury trials, and length of sentence and amounts of fines which may be imposed by the court.

Census of Law Enforcement Training Academies
Collects data on the number and types of staff employed at training facilities, budgets, sources of funds, number of officers trained, and policies and practices. In addition to basic organizational data, the survey collects information on training curriculum issues critical to current to law enforcement policy development.

Census of Publicly Funded Forensic Crime Laboratories
Collects data on staff, budgets, operating procedures, case workloads, training, and resource needs from more than 300 crime labs. This Bureau of Justice Statistics census represents the first national census of crime labs. Census information will be used to better understand the number of cases processed by these labs and the amount of resources required to meet the increased demand for forensic services. In developing and implementing this census, BJS worked closely with the American Society of Crime Laboratory Directors (ASCLAD).

Census of State and Local Law Enforcement Agencies (CSLLEA), 2000
Provides data on all State and local law enforcement agencies operating nationwide. Data collected include the number of sworn and civilian personnel by state and type of agency, and functions performed by each agency.

Law Enforcement Agency Identifiers Crosswalk
To facilitate the creation and analysis of place-level data, the Bureau of Justice Statistics (BJS) and the National Archive of Criminal Justice Data (NACJD) created the Law Enforcement Agency Identifiers Crosswalk. The crosswalk file was designed to provide geographic and other identification information for each record included in either the Federal Bureau of Investigation's Uniform Crime Reports (UCR) files or BJS's Directory of Law Enforcement Agencies. The variables contained make it possible for researchers to take police agency-level data, combine them with Bureau of the Census and BJS data, and perform place-level, jurisdiction-level, and government-level analyses.

Law Enforcement Management and Administrative Statistics (LEMAS)
Conducted every 3 to 4 years, LEMAS collects data from over 3,000 state and local law enforcement agencies, including all those that employ 100 or more sworn officers and a nationally representative sample of smaller agencies. Data are obtained on the organization and administration of police and sheriffs' departments, including agency responsibilities, operating expenditures, job functions of sworn and civilian employees, officer salaries and special pay, demographic characteristics of officers, weapons and armor policies, education and training requirements, computers and information systems, vehicles, special units, and community policing activities.