Adolescent Anti-Social behaviour is viewed as a normative part of the developmental process. That said, the outcomes of such behaviour on a young person’s future, although varying in severity, are often negative. The many factors which lead to a young person taking part in anti-social behaviour differ between individuals and groups. This project, through collaboration with local services, aims to investigate the decision to take part, the factors which are involved in this decision both for individual adolescents and groups and whether this decision can be altered using an intervention designed to impact upon an individual’s uniqueness.