This document summarizes the key roles and functions of the Special Adviser to the UN Secretary-General on Sport for Development and Peace. The Adviser advocates for and promotes sport as a tool for development and peace. He facilitates dialogue and partnerships within the UN and with other organizations around using sport for these purposes. He also represents the UN Secretary-General at important sport events. The document then discusses how sport can be used to develop skills in youth like teamwork, communication, and decision making that help prevent youth crime and delinquency by providing an alternative to gangs and criminal behavior. However, sport must be implemented properly and integrated with other community interventions to have a positive impact.