Our hope is that we can reduce aggressive and disruptive behaviour, which can be a risk factor for future abuse of, for example, tobacco, alcohol and drugs (ANT) and (ASPD) antisocial personality disorder, affective behaviour and in the long run crime. Today’s high school does not have the tools and resources needed to cope with these students. By using Good Behaviour Game & Inclusive Behavioural Support in School, schools can acquire concrete tools.