Law Enforcement Agency Identifiers Crosswalk, United States, 2012 (ICPSR 35158)

Version Date: Sep 18, 2018 View help for published

Principal Investigator(s): View help for Principal Investigator(s)
United States. Bureau of Justice Statistics


Version V2 ()

  • V2 [2018-09-18]
  • V1 [2015-04-17] unpublished

Criminal justice research may require merging disparate data sources that have no common match keys. The Law Enforcement Agency Identifiers Crosswalk (LEAIC) file facilitates linking reported crime data with socio-economic data. It does this by having a record for each law enforcement agency, law enforcement reporting entity, and access identifier for the National Crime Information Center (NCIC). Essentially, if an entity (law enforcement agency or section of a law enforcement agency) is capable of reporting crime information, it is included in the file. The LEAIC records contain common match keys for merging reported crime data and Census Bureau data. These linkage variables include the Originating Agency Identifier (ORI) code, Federal Information Processing Standards (FIPS) state, county and place codes, and Governments Integrated Directory government identifier codes.

United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics


Inter-university Consortium for Political and Social Research

The Law Enforcement Agency Identifiers Crosswalk (LEAIC) file is primarily designed to apply geographic and government information to records representing law enforcement agencies.


State and local police agencies, police reporting entities, and police-related access to the NCIC

Law enforcement agencies and reporting entities

Census of State and Local Law Enforcement Agencies, 2008

Extract file supplied by the National Crime Information Center (NCIC)

Uniform Crime Reporting Program: Offenses Known and Clearances by Arrest, 2012

census/enumeration data


2018-09-18 Data and documentation were updated to correct a typo in the study's title.

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • United States. Bureau of Justice Statistics. Law Enforcement Agency Identifiers Crosswalk, United States, 2012. ICPSR35158-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2018-09-18.

2015-04-17 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Performed consistency checks.
  • Created variable labels and/or value labels.
  • Performed recodes and/or calculated derived variables.
  • Checked for undocumented or out-of-range codes.


  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

NACJD logo

This dataset is maintained and distributed by the National Archive of Criminal Justice Data (NACJD), the criminal justice archive within ICPSR. NACJD is primarily sponsored by three agencies within the U.S. Department of Justice: the Bureau of Justice Statistics, the National Institute of Justice, and the Office of Juvenile Justice and Delinquency Prevention.