Dr. John Weekes PhD

Dr. John R. Weekes is trained in both experimental and clinical psychology and holds a Ph.D. from Ohio University. He has been an Adjunct Research Professor of Forensic Psychology and Addictions in the Department of Psychology at Carleton University since 1994; he teaches courses in addictions and supervises the degree research of undergraduate and graduate students. John has been involved in the field of criminal justice for over 3 decades and has specialized in forensic-related addictions issues since the early 1990s. He has consulted widely and has provided evidence-based strategic advice and guidance on drug strategy issues to numerous governments and non-governmental agencies around the globe. Notably, he serves as a continuing member of the UK’s National Offender Management Service Correctional Services Accreditation and Advice Panel and he is a long-standing scientific advisor to the Delaware Valley chapter of Volunteers of America. John also serves on the Advisory Board of the Centre for Forensic Behavioural Science and Justice Studies at the University of Saskatchewan. John has published extensively on diverse issues including substance misuse, forensic psychology, clinical psychopathology, motivation, evidence-informed assessment and treatment, contemporary clinical practice, harm reduction, and treatment outcome research.