Building good lives, together – the development and implementation of a Model of Care in a NZ forensic intellectual disability context

Mr Paul Oxnam1, Dr Emma Gardner2, Ms Sandra Malcolm1, Ms Anne Mathieson1

1Capital And Coast District Health Board, Porirua, New Zealand, 2Department of Corrections, Wellington, New Zealand

The Regional Intellectual Disability Secure Service (RIDSS) based in Porirua, New Zealand utilises a Model of Care which provides a comprehensive approach to the provision of care and rehabilitation for offenders with an intellectual disability. The Model was developed by clinical psychologists Paul Oxnam and Emma Gardner.

It incorporates the Good Lives Model of Offender Rehabilitation, a comprehensive risk assessment structure, Positive Behaviour Support approaches to direct care, and a formal staff supervision and education programme. The Model draws on the strengths of clients and capabilities of different staff disciplines.

During this presentation, Sandra and Anne will describe the evolution of the Model of Care and outline how it provides clinicians with a systematic framework to guide case conceptualisation and targeted rehabilitation planning – from admission to discharge. Case examples will be provided.


Sandra Malcolm, MA., PGDip.Clin.Psyc., is a Consultant Clinical Psychologist at the Regional Intellectual Disability Secure Service (RIDSS) in Wellington, New Zealand. The RIDSS provides specialist secure care and rehabilitation for offenders with an intellectual disability. Sandra has worked in intellectual disability services including community and inpatient settings for over 15 years. She is experienced in implementing individual and group therapies.

Anne Mathieson, M.Soc.Sci., PG Dip Clin Psych., is a Consultant Clinical Psychologist, within the community arm of the Regional Intellectual Disability Service, in Wellington, New Zealand. Our team provides assessment and treatment for adults with intellectual disability who present with mental health issues, have high complex needs, or challenging behaviour, including offenders with intellectual disability. Anne has worked in the field of intellectual disability for over 15 years and has provided services to people with intellectual disability in both an individual and group context. Anne is also a member of the NZ Council of ASID. In her private practice Anne is a health assessor for the Courts and a Specialist Assessor for the IDCCR Act.

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