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Uniform Crime Reporting Program Data: Police Employee (LEOKA) Data, 2010

Resource Type
Dataset : aggregate data
  • United States Department of Justice. Federal Bureau of Investigation
Other Title
  • Archival Version (Subtitle)
Collective Title
  • Uniform Crime Reporting Program Data Series
Publication Date
Funding Reference
  • United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics
  • United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics
Free Keywords
arrests; assaults on police; crime rates; crime reporting; crime statistics; law enforcement; offenses; police deaths; police officers; Uniform Crime Reports
  • Abstract

    The Uniform Crime Reporting Program Data, Police Employee Data, 2010 file contains monthly data on felonious or accidental killings and assaults upon United States law enforcement officers acting in the line of duty. The Federal Bureau of Investigation (FBI) assembled the data and processed them from UCR Master Police Employee (LEOKA) data tapes. Each agency record included in the file includes the following summary variables: state code, population group code, geographic division, Metropolitan Statistical Area code, and agency name. These variables afford considerable flexibility in creating subsets or aggregations of the data. Since 1930, the Federal Bureau of Investigation has compiled the Uniform Crime Reports (UCR) to serve as a periodic nationwide assessment of reported crimes not available elsewhere in the criminal justice system. Each year, this information is reported in four types of files: (1) Offenses Known and Clearances by Arrest, (2) Property Stolen and Recovered, (3) Supplementary Homicide Reports (SHR), and (4) Police Employee (LEOKA) Data. The Police Employee (LEOKA) Data provide information about law enforcement officers killed or assaulted (hence the acronym, LEOKA) in the line of duty. The variables created from the LEOKA forms provide in-depth information on the circumstances surrounding killings or assaults, including type of call answered, type of weapon used, and type of patrol the officers were on.
  • Methods

    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.; Checked for undocumented or out-of-range codes..
  • Table of Contents


    • DS1: Dataset
Temporal Coverage
  • Time period: 2010
  • Collection date: 2010
Geographic Coverage
  • United States
Sampled Universe
Law enforcement officers killed or assaulted as reported by law enforcement agencies. Smallest Geographic Unit: states, counties, cities
Collection Mode
  • self-enumerated questionnaire

    Starting with the year 1998, each of the four parts of the UCR data collection archived by ICPSR is released as a separate study under its own study number. The Police Employee data for the years 1975-1997 can be found in UNIFORM CRIME REPORTING PROGRAM DATA [UNITED STATES]: 1975-1997 (ICPSR 9028).

This version of the study is no longer available on the web. If you need to acquire this version of the data, you have to contact ICPSR User Support (
Alternative Identifiers
  • 33525 (Type: ICPSR Study Number)
  • Is previous version of
    DOI: 10.3886/ICPSR33525.v1
  • Kercher, Cassandra, Swedler, David I., Pollack, Keshia M., Webster, Daniel W.. Homicides of law enforcement officers responding to domestic disturbance calls. Injury Prevention.19, (5), 331-335.2013.
    • ID: 10.1136/injuryprev-2012-040723 (DOI)
  • Federal Bureau of Investigation. About Law Enforcement Officers Killed and Assaulted, 2010. Federal Bureau of Investigation. 2011.
    • ID: (URL)
  • Federal Bureau of Investigation. Crime in the United States 2010. Washington, DC: United States Department of Justice, Federal Bureau of Investigation, Criminal Justice Information Services Division. 2011.
    • ID: (URL)

Update Metadata: 2015-08-05 | Issue Number: 6 | Registration Date: 2015-06-16

United States Department of Justice. Federal Bureau of Investigation (2012): Uniform Crime Reporting Program Data: Police Employee (LEOKA) Data, 2010. Archival Version. Uniform Crime Reporting Program Data Series. Version: v0. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset.