He is former acting senior psychologist with the Correctional Service of Canada, a former psychologist with Forensic Psychiatric Services Commission, a former Director of the Interprofessional Clinic at the University of British Columbia – Okanagan, and a former founding partner and Vise President of Research and Development for The Forensic Alliance. Currently, he is in private practice, which involves training criminal justice professionals, conducting research, assessing and treating individuals involved in the justice system, appraising the evaluations of other professionals, and providing expert testimony. Dr. Cooper has been qualified as an expert in forensic psychology and has testified in criminal trials in Canada and the United States on behalf of the prosecution and defence. He has also provided evidence at Review Board hearings.