Peer Courts are premised on the belief that peer influence, when properly focused, can be a powerful weapon against juvenile crime. Students may assume the role of attorneys, court staff, judges, and jurors in a trial to determine what should happen to a peer who has violated the law. Peer court programs also provide services to schools through a prevention curriculum on the juvenile justice system. Philliber conducted an evaluation of a DUI prevention curriculum and companion website at teen peer courts in California for the Judicial Council of California. Pre, post and follow-up surveys were administered with youth and parents who received the curriculum in order to assess program effectiveness. Interviews were conducted with program administrators and trainers to assess the utility of the curriculum and observations were made at courts demonstrating best practices. Website usability and usefulness were also assessed.