National Archive of Criminal Justice Data

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.

Traffic Stop Data Collection Policies for State Police, 2004 (ICPSR 4288)

Principal Investigator(s):


This collection contains survey data collected at the end of October 2004 from the 49 state law enforcement agencies in the United States that had traffic patrol responsibility. Information was gathered about their policies for recording race and ethnicity data for persons in traffic stops, including the circumstances under which demographic data should be collected for traffic-related stops and whether such information should be stored in an electronically accessible format. The survey was not designed to obtain available agency databases containing traffic stop records.

Access Notes

  • These data are available to the general public.


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Study Description


United States Department of Justice. Bureau of Justice Statistics. Traffic Stop Data Collection Policies for State Police, 2004. ICPSR04288-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2005-09-02.

Persistent URL:

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  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

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

Scope of Study

Subject Terms:   ethnic identity, ethnicity, police patrol, policies and procedures, race, traffic offenses

Smallest Geographic Unit:   state

Geographic Coverage:   United States

Time Period:  

  • 2004

Date of Collection:  

  • 2004-10

Unit of Observation:   agency

Universe:   State law enforcement agencies in the United States with traffic patrol responsibility.

Data Types:   survey data


Mode of Data Collection:   self-enumerated questionnaire

Extent of Processing:  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:

  • Checked for undocumented or out-of-range codes.


Original ICPSR Release:  

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