Group items tagged

A brilliant experiment has proven that adversarial pressures skew forensic psychologists' scoring of supposedly objective risk assessment tests, and that this "adversarial allegiance" is not due to selection bias, or preexisting differences among evaluators. The researchers duped about 100 experienced forensic psychologists into believing they were part of a large-scale forensic case consultation at the behest of either a public defender service or a specialized prosecution unit. After two days of formal training by recognized experts on two widely used forensic instruments -- the Psychopathy Checklist-R (PCL-R) and the Static-99R -- the psychologists were paid $400 to spend a third day reviewing cases and scoring subjects. The National Science Foundation picked up the $40,000 tab.

This just goes to show you that corruption is indeed part of the "justice" system.

Juveniles tagged for preventive detention due to their supposedly higher level of sexual violence risk are no more likely to sexually reoffend than adolescents who are not so branded, a new study has found. Only about 12 percent of youths who were targeted for civil commitment as sexually violent predators (SVP's) but then freed went on to commit a new sex offense. That compares with about 17 percent of youths screened out as lower risk and tracked over the same five-year follow-up period.

This article argues that the new preventive law focus in sex offender laws is largely ineffective and too costly to personal liberty. The application of sex offender laws involving civil commitment, sex offender registration, and residency restrictions is often based on an individualized analysis of future dangerousness, i.e., the risk the defendant will sexually recidivate. In assessing future dangerousness, experts and courts place heavy emphasis on the use of actuarial tools, basically checklists that mental health experts use to derive statistical estimates of risk. This article provides substantiation that actuarial tools, while enjoying the imprimatur of science, suffer from significant empirical faults. Yet courts are largely abandoning their gatekeeping roles in accepting the experts' testimony using actuarial tool predictions of risk without critical review as required by the Daubert and Frye evidentiary standards. The paper theorizes that this is likely a pragmatic strategy considering the current political and public thirst for retribution against sexual predators. But, use of this empirically-challenged science exacerbates the practice of applying sex offender restrictions to inappropriately labeled individuals. Finally, this article takes advantage of the interdisciplinary trend of engaging social science with the law on expert evidence. More specifically, it offers an empirical assessment of future dangerousness opinions within the Daubert/Frye scientific evidence frameworks. The significance of the conclusion reached in this article is clear: if the law continues to rely upon suspect science that results in the wrong individuals being subject to liberty-infringing sex offender laws, then the drain on criminal justice resources will leave the truly dangerous offenders without sufficient supervision at the risk of public safety.

Original Article09/04/2013By Karen Franklin, Ph.D.Reported predictive validity higher in studies by an instrument's designers than by independent researchers The use of actuarial risk assessment instruments to predict violence is becoming more a...

Original Article10/03/2013Risk assessment tools used to predict prisoner re-offending are no more accurate than tossing a coin when it comes to psychopaths, according to new research from Queen Mary University of London. The researchers say the ...