The Center for Evidence-Based Corrections, at the University of California, Irvine, has just posted the results of the first analysis of implementation and outcomes for GPS monitoring of high risk sex offender parolees in California.  In Implementation and Early Outcomes for the San Diego High Risk Sex Offender (HRSO) GPS Pilot Program, the authors report on issues encountered with equipment, data use guidelines, effect on parolee recidivism, etc., useful findings as the pilot is in the process of expanding statewide.