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Abstract: 

California adopted one of the most extensive GPS monitoring programs in the country, implementing a regime for high risk sex offenders (HRSOs). In addition to its unprecedented scope, the California program has been among the most thoroughly documented and studied of its kind. This article examines California’s experience in monitoring sex offenders, a program the authors have followed and investigated from its inception. This is a process evaluation, not an outcome study. Two technologies—cellular telephone networks and the Global Positioning System—have finally made it possible for electronic monitoring to do what its early supporters had always envisioned.

Keywords: California Department of Corrections and Rehabilitation; CDCR; core components

Affiliations:  1: Development Services Group, Inc. ; 2: Development Services Group, Inc. .