Assessing the cost of electronically monitoring high-risk sex offenders

Marisa K. Omori, Susan F. Turner

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In addition to housing, employment, and registration restrictions, sex offenders have been subjected to electronic monitoring with the idea that they may be either surveilled or deterred from committing additional crime. This study evaluated the supervision costs of placing high-risk sex offender parolees on Global Positioning Satellite (GPS) monitoring as part of a pilot program by the California Department of Corrections and Rehabilitation. Using a quasiexperimental design, the study tracked parolees’ costs of supervision and their parole violations for 1 year. GPS was not cost-effective; the overall cost of parolees on GPS was greater than parolees not on the monitoring, the two groups committed similar parole violations, and parolees on GPS were retained on parole longer.

Original languageEnglish (US)
Pages (from-to)873-894
Number of pages22
JournalCrime and Delinquency
Issue number6
StatePublished - Jan 1 2015
Externally publishedYes


  • Cost-effectiveness
  • Electronic monitoring
  • GPS
  • Parole
  • Sex offender

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Law


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