Evaluation of a Repeat Offender Unit in Phoenix, Arizona, 1987-1989 (ICPSR 9793)

Principal Investigator(s): Petersilia, Joan; Abrahamse, Allan F.; Ebener, Patricia A.; Greenwood, Peter W.


The purpose of this study was to evaluate the impact of a Repeat Offender Unit in Phoenix. Repeat Offender Programs are police-initiated procedures for patrolling and apprehending likely offenders in communities. These units typically rely on the cooperation of police and prosecutors who work together to identify, convict, and incarcerate individuals who are judged likely to commit crimes, especially serious crimes, at high rates. For this study, previous offenders were assigned either to a control or an experimental group. If an individual assigned to the experimental group was later arrested, the case received special attention by the Repeat Offender Program. Staff of the Repeat Offender Program worked closely with the county attorney's office to thoroughly document the case and to obtain victim and witness cooperation. If the individual was in the control group and was later arrested, no additional action was taken by the Program staff. Variables include assignment to the experimental or control group, jail status, probation and parole status, custody status, number of felony arrests, type of case, bond amount, number of counts against the individual, type of counts against the individual, number of prior convictions, arresting agency, case outcome, type of incarceration imposed, and length of incarceration imposed.

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.


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Study Description


Petersilia, Joan, Allan F. Abrahamse, Patricia A. Ebener, and Peter W. Greenwood. Evaluation of a Repeat Offender Unit in Phoenix, Arizona, 1987-1989. ICPSR09793-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1992. https://doi.org/10.3886/ICPSR09793.v1

Persistent URL: https://doi.org/10.3886/ICPSR09793.v1

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This study was funded by:

  • United States Department of Justice. Office of Justice Programs. National Institute of Justice (87-IJ-CX-0056)

Scope of Study

Subject Terms:    criminal justice programs, criminality prediction, police, program evaluation, prosecuting attorneys, recidivists

Geographic Coverage:    Arizona, Phoenix, United States

Time Period:   

  • 1987--1989

Date of Collection:   

  • 1987--1989

Universe:    All offenders processed by the Maricopa County Court in 1987.

Data Type(s):    event/transaction data, experimental data


Sample:    Computerized random sample with individuals assigned to either a control or an experimental group but with one exception: If an individual assigned to one group was found to be "connected" to an individual in the other group, the assignment of the cases was changed so that the "connected" individuals were in the same group.

Data Source:

field interrogation cards, warrant lists, information from pawnshops, and the Maricopa County Attorney's Office


Original ICPSR Release:   1992-10-31

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