Comparing sex offender risk assessment measures on a UK sample

LA Craig, Kevin Browne, I Stringer

Research output: Contribution to journalArticle

40 Citations (Scopus)


The purpose of this study on 139 sex offenders was to consider the application of six measures of risk: Static-99, SACJ-Min (Structured Anchored Clinical Judgment Scale-Minimum), RRASOR (Rapid Risk Assessment for Sexual Offence Recidivism), Risk Matrix 2000-Sexual/Violent, and SVR-20 (Sexual Violence Risk-20) and to compare risk assessments conducted by a Regional Secure Unit (RSU) and the Probation Service. Levels of risk for the RSU sample ranged from 1% to 42% low risk to 1% to 66% high risk compared with the Probation sample of 8% to 43% low risk to 4% to 70% high risk. Offenders with adult victims obtained significantly higher scores using the RM2000/S and SACJ-Min than did those with child victims who obtained significantly higher scores on the RRASOR. Sex offenders referred to a RSU scored significantly higher on RRASOR and RM2000/S than did sex offenders supervised by the Probation Service. Forensic practitioners may be better served if risk measures assess specific subcategories of sexual offenders.
Original languageEnglish
Pages (from-to)7-27
Number of pages21
JournalInternational Journal of Offender Therapy and Comparative Criminology
Issue number1
Publication statusPublished - 1 Jan 2004


  • actuarial and clinical risk assessment
  • regional secure unit
  • sexual offenders
  • probation


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