Het effect van een pro Justitia-rapportage op de bewijsbeslissing: een empirische verkenning

A forensic mental health report is requested in about 30% of more serious cases presented to the criminal court. These reports can be used at sentencing and advise the judge on criminal responsibility, recidivism risk, and possible treatment measures, but is not a formal factor in decisions about guilt. The current study focuses on the (unwarranted) effect of forensic mental health information on conviction decisions. Using an experimental vignette study among 155 criminology students, results show that when a mental disorder is present, conviction rates are higher than when such information is absent. In line with the story model of judicial decision-making, additional analyses showed that this effect was mediated by the evaluation of guilt rather than by the evaluation of other physical evidence. Implications for further research and practice are discussed.