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Crime and victimisation in people with intellectual disability: A case linkage study

Billy C. Fogden, Stuart D. Thomas, Michael Daffern, James R. Ogloff,

Academic Literature


Background: Studies have suggested that people with intellectual disability are disproportionately involved in crime both as perpetrators and victims. Method: A case linkage design used three Australian contact-level databases, from disability services, public mental health services and police records. Rates of contact, and official records of victimisation and criminal charges were compared to those in a community sample without intellectual disability. Results: Although people with intellectual disability were significantly less likely to have an official record of victimisation and offending overall, their rates of violent and sexual victimisation and offending were significantly higher. The presence of comorbid mental illness considerably increased the likelihood of victimisation and offending; several sex differences were also noted. Conclusions: People with intellectual disability are at increased risk for both violent and sexual victimisation and offending. The presence of comorbid mental illness aggravates the risk of offending and victimisation. Future research should focus on a more nuanced exploration of the risks associated with intellectual disability and specific mental disorders and related indices of complexity. (PsycINFO Database Record (c) 2016 APA, all rights reserved)

Publication information

Journal/Publication : BMC Psychiatry Vol 16 2016, ArtID 170

Domain/s: Social relationships

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