Dr. Stuart Reece is a family physician working in Brisbane in Australia where he runs a large clinic with a special interest in the medical treatment of drug addiction. He is interested both in the underlying pathophysiology of drug addiction – how drugs work in the body and why they are so destructive to long term health – and also in the treatment of drug addiction including its radical cure. Dr. Reece has a long standing interest in cannabinoids particularly as they relate to genotoxicity, epigenotoxicity and chromosomal and mitochondrial toxicity which have downstream effects lasting for multiple generations. For these reasons Dr Reece has published several epidemiological research papers on cannabis-induced genotoxicity as reflected in the incidence of both birth defects and cancer development both in exposed adults and in the offspring of exposed individuals and subsequent generations. Dr. Reece extensively uses advanced space-time statistical analytical techniques and the formal techniques of causal inference to analyze not just associations across space and time simultaneously but also to quantitatively evaluate the evidence for truly causal relationships. Dr. Reece was appointed and now re-appointed a Professor in the School of Psychiatry and Clinical Neurosciences at both the University of Western Australia and Edith Cowan University in recognition of his many contributions which advance our understanding of the toxicopathophysiology and treatment of drug addiction in general and cannabinoid exposure in particular.