Homicidal behaviour among people with avoidant, dependent and obsessive-compulsive (cluster C) personality disorder.

Crim Behav Ment Health

Institute of Behavioural Sciences, University of Helsinki, and Forensic Center for Children and Adolescents, Helsinki University Central Hospital, Finland.

Published: February 2013

AI Article Synopsis

  • This study fills a gap in forensic psychiatry by examining homicidal behavior among offenders with cluster C personality disorders, which include avoidant, dependent, and obsessional personality disorders.
  • Findings show that these offenders generally have shorter criminal histories and similar offender-victim relationships compared to those with other personality disorders, but are more likely to confess and express remorse after the act.
  • The research suggests that while cluster C disorders are infrequent in homicide cases, the unique backgrounds and behaviors of these offenders indicate they may require different support and interventions.

Article Abstract

Background: Despite a growing forensic psychiatry literature, no previous study has examined in detail homicidal behaviour among offenders with cluster C personality disorders - the avoidant, dependent or obsessional personality disorders.

Aims: This study aims to compare homicide offenders with cluster C personality disorders with those with other personality disorders on criminal history, offender-victim relationship and post-offence reaction variables.

Methods: The sample was drawn from all Finnish homicide cases of 1996-2004 for whom a forensic psychiatric evaluation had been conducted. Data were extracted from forensic psychiatric and crime reports.

Results: In a nationwide sample of 593 homicide offenders, 21 had at least one cluster C personality disorder. These offenders had significantly shorter criminal histories than the others. Offender-victim relationship did not differ between the groups, but confession to the crime and feelings of remorse were more common among people with cluster C disorders. In addition, compared with other personality disorder clusters, co-morbid depression was more common.

Conclusions: Cluster C personality disorders are rare, but not nonexistent, among homicide offenders. Observed differences in their backgrounds and post-offence behaviours indicate that they may have special needs.

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Source
http://dx.doi.org/10.1002/cbm.1844DOI Listing

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