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Abstract: The Assessment of Risk and Manageability with Intellectually Disabled IndividuaLs who Offend Sexually (ARMIDILO-S)

The Assessment of Risk Manageability for Individuals with Developmental and Intellectual Limitations who Offend Sexually (ARMIDILO-S) was developed by Doug Boer and colleagues to provide a comprehensive evaluation of a cognitively limited sex offender’s personal and environmental risks and protective factors. The instrument provides risk estimates for re-offending and helps users derive a treatment or management plan. Its format allows for consistency and structure in assessment and facilitates communication about risks and protective factors.


Professor Boer is currently at the University of Canberra. Prior to his current position, he worked as an academic at the University of Waikato, Hamilton, New Zealand for seven years and before that he worked for the Correctional Service of Canada for 15 years in a variety of contexts including sex offender therapist and treatment programme supervisor. He has published a number of articles and structured clinical assessment manuals for use with sexual offenders. Professor Boer is also on a number of editorial boards including the Journal of Intellectual and Developmental Disability, Sexual Abuse: Australia, New Zealand, and the British Journal of Forensic Practice. Finally, he is an active clinician, assessor, and clinical supervisor.