Gang affiliation is strongly associated with youth crime. Although gang prevention, intervention and suppression programmes have been used to reduce affiliation and manage youth gang-related activities, the effectiveness of these approaches is questionable. Further, comprehensive programmes supporting disengagement from gangs that also address the actual criminal behaviours of gang-affiliated youth are rare. Arguably, these are necessary if the goal of intervention is to reduce criminal behaviour and support disengagement from gangs. This paper aims to address these issues.