Predicting violence in psychopaths is "no more than chance"

By Kate Kelland LONDON (Reuters) – Assessment tools used to predict how likely a psychopathic prisoner is to re-offend if freed from jail are “utterly useless” and parole boards might just as well flip a coin when deciding such risks, psychiatrists said on Tuesday. Publishing a study that found risk score tools are only around 46 percent accurate on how likely psychopathic convicts are to kill, rape or assault again, they said probation officers and judges should set little or no store by such tests. …