Effectiveness of Police Response: Denver, 1982 (ICPSR 8217)

Principal Investigator(s): Bayley, David


This data collection investigates the nature of law enforcement by recording police behavior in problematic situations, primarily disturbances and traffic stops. The data collection contains two files. The first consists of information on disturbance encounters. Disturbance variables include type of disturbance, manner of investigation, designation of police response, several situational variables such as type of setting, number of victims, bystanders, suspects, and witnesses, demeanor of participants toward the police, type of police response, and demeanor of police toward participants. The second file contains data on traffic offenses. The variables include manner of investigation, incident code, officers' description of the incident, condition of the vehicle stopped, police contact with the passengers of the vehicle, demeanor of passengers toward the police, demeanor of police toward the passengers, and resolution of the situation. The data were collected based on field observation, using an instrument for recording observations.

Access Notes

  • One or more data files in this study are set up in a non-standard format, such as card image format. Users may need help converting these files before they can be used for analysis.

  • 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.


DS0:  Study-Level Files
DS1:  Disturbances - Download All Files (7.385 MB)
ASCII + SPSS Setup   
DS2:  Traffic Stops - Download All Files (7.381 MB)
ASCII + SPSS Setup   

Study Description


Bayley, David. Effectiveness of Police Response: Denver, 1982. ICPSR08217-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1985. https://doi.org/10.3886/ICPSR08217.v1

Persistent URL: https://doi.org/10.3886/ICPSR08217.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

  • United States Department of Justice. Office of Justice Programs. National Institute of Justice (81-IJ-CX-0082)

Scope of Study

Subject Terms:    crime control, crime prevention, law enforcement, police community relations, police effectiveness, police response, traffic offenses

Geographic Coverage:    Colorado, Denver, United States

Time Period:   

  • 1982-06--1982-09

Date of Collection:   

  • 1982-06--1982-09

Universe:    Disturbances investigated by, and traffic stops made by, Denver, Colorado, police from June-September 1982.

Data Type(s):    event/transaction data


Sample:    The data were selected based on a stratified sample by precinct and shift.

Data Source:

field observation


Original ICPSR Release:   1985-01-11

Version History:

  • 2006-01-18 File CB8217.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.

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