Dr. Noller’s research interest in cannabis commenced with his undertaking Ph.D. research into cannabis use as a cultural practice at Otago University in 2002. Commencing his studies in the Department of Anthropology, he moved  to the School of Medicine’s Department of Psychological Medicine, where he completed his thesis in 2007, graduating in 2008.

Dr. Noller maintains an interest in all aspects of cannabis culture in New Zealand and internationally. This includes the development of the synthetic cannabis industry, for whom he produced a report product harms in 2014. He also remains up-to-date with current New Zealand cannabis use trends, including cultivation and yields, prevalence, pricing, marketing and consumption patterns, which inform his knowledge as an expert witness in court cases.