The aim of this research was to critically examine methods for reducing incidences of aggression within adolescence. To achieve this aim, a proactive intervention programme was devised and implemented aimed at changing attitudes towards physical and relational aggression through social skills education within the College's tutorial programme. The research involved the implementation of an intervention programme that consisted of three workshops based on social skills training, problem solving and anger management techniques, the development of empathic skills, education on the role of the bystander, and victimisation prevention strategies (N = 158). Two self-report questionnaires were administered, pre-test and post-test to analyse the effectiveness of the intervention programme. The questionnaires included measures of attitude towards physical and relational aggression; victimisation; popularity and aggression; bystander and victimisation beliefs; and empathy towards victims. A control group completed the two questionnaires in the same time frame but without undertaking the intervention workshops. Post implementation, aggression scores for both physical and relational aggression significantly decreased for the intervention group against a control. Additionally, popularity was found to positively correlate with both physical and relational aggression. This study highlights the necessity for intervention programmes in educational environments in terms of the shaping of prosocial attitudes of students and to ensure the safeguarding of students.