Our five-cluster solution with five subtypes of firesetters partially validates the proposed M-TTAF trajectories and suggests that for offenders with and without mental disorder, this classification may be useful. If further validated with larger and more diverse samples, the M-TTAF could provide guidance on staging evidence-based treatment. Copyright © 2015 John Wiley & Sons, Ltd.

Firesetters with psychotic disorders constitute a distinct and important offender group. However, little is known about how psychotic firesetters differ from non-psychotic firesetters. More knowledge is required in order to treat this particular population effectively. Psychotic (n = 30) and nonpsychotic (n = 94) firesetters of both sexes referred for pre-trial forensic mental health assessment in the Netherlands were compared on sociodemographic, pathological, judicial and event-related characteristics using binary and multivariate statistical tests. Results showed that psychotic firesetters were older, single and unemployed. They had a more extensive history of mental health problems, associated drug use and impaired selfreliance. Opposed to non-psychotic offenders, physical abuse in childhood and alcohol abuse were less prevalent. They had a more extensive history of prior convictions, committed the arsons more often alone and were less often intoxicated. Treatment implications are discussed as focusing treatment on these differences may contribute to treatment efficacy and prevention of recidivism.

No abstract

In the Netherlands pre-trial forensic mental health assessments are conducted to examine whether a mental disorder was present at the time of the offence that affected the free will of a person, in which case criminal accountability is considered diminished or absent. This study aims to investigate societal changes over time in forensic mental health recommendations in arson cases. Seventy-two reports of male arsonists assessed in 1950-2010 were included in this study, 36 arsonists were assessed in the first time period and 36 in the second period . Results show an association between DSM classification and the conclusion on criminal accountability only in the first period and an association between recidivism risk and the forensic mental health recommendation only in the later period. It is concluded that mental disorder was of greater influence on the conclusion on accountability in the first time period, whilst dangerousness played a more important role on the forensic mental health recommendation in the later time period. Our findings reflect a shift from paternalistic principles to principles of risk control and show that societal changes influence the field of forensic mental health.

No abstract