Peter Defina is a Registered Psychologist in NSW and a member of the Australian Psychological Society. He has an Honours Degree in Psychology and a Masters Degree in Clinical Psychology. He has worked as a psychologist since 1983 in a range of clinical, community, and forensic settings. He has been the clinical director of a number of drug and alcohol treatment facilities. He has authored treatment manuals for substance abuse, and designed treatment programs for pain management. He has lectured at tertiary institutions since 1995. Since 1991 he has provided Vocational Assessment services for medico-legal purposes on a consultancy basis. At present he is an independent consultant to the Occupational HeathAssessment Centre.