David joined the National Cannabis Prevention and Information Centre (NCPIC) at the National Drug and Alcohol Research Centre (NDARC), as a Lecturer in June 2009 to coordinate a study into the withdrawal effects associated with quitting cannabis. This study resulted in the production of the worlds first psychometrically evaluated cannabis withdrawal scale for use in clinical and research settings. David extended this work with a successful NHMRC project grant that is currently in progress, examining the safety and efficacy of a novel cannabinoid based pharmacotherapy for managing cannabis withdrawal symptoms using a double blind inpatient Randomised Controlled Trial. David has also published on computer aided interventions for Drug and Alcohol disorders, and is a member of the Program for International Research and Training (PIRT), at NDARC, where he has published on evaluating the first female only methadone clinic in Iran.
David performed his doctoral work in Evolutionary Biology at the University of Edinburgh in Scotland, before carrying out postdoctoral studies at Sydney University, under a Royal Commission Commonwealth Research Fellowship from the UK. David has many years of quantitative research experience, and has lectured on experimental design and statistical analysis as well as on various aspects of animal behaviour. David has carried out wide ranging experiments in fields as diverse as the evolution of altruism, designing genetic probes, to quantifying the neurophysiological correlates of emotion using brain imaging techniques. David is particularly interested in understanding human behaviour from an evolutionary perspective.