The Typology of Sex-Offenders, High Risk Assessment and the Effectiveness of Treatment

The sample of this study was 640 incarcerated sex-offenders in north and south prison of Taiwan. The subjects were asked to fill out the “High risk questionnaire” which developed by the researchers.

Data were analyzed by using X2, T test analysis and logistic regression analysis. The results were summarized as follows: 1.Compare with one-time sex-offenders, SVP offenders tend to grow up in a violent family; early age at first offense discoverd; more changing jobs; having more deviant sexual fantasy; expose more to X rate movies and plan of the offense before the crime. 2.During the crime, SVP offenders trend to bring weapon with them; beat the victims; longer duration of the offense; verbal threat to victims; and take subjects from victim as the souvenirs. 3.The most powerful predict variables which can identify SVP offenders are: a.Imitating the behavior form X-Rate movie, during the offense. b.Planning the offense before crime. c.Sexually-abused as a child. d.Taking subjects from victim as the souvenir. e.Early age at first offense discoverd. f.Force uesd(beating the victims) during the offense.