The resurgence in outlaw motorcycle gangs (OMCGs) in Australia and around the world has highlighted the need for a better understanding of their criminal activities; Dr Christopher Dowling of the Australian Institute of Criminology – a speaker at this week’s Australia and New Zealand Society of Evidence-Based Policing Conference – outlines the work of the Serious and Organised Crime Research Laboratory, and its crime science approach to the criminal activity of OMCGs.