Abstract The integration of peer mentors with a history of incarceration is a strengths-based intervention, primarily emerging within large urban U.S. cities. The Credible Messenger Institute is an innovative training program that aims to prepare adults who were formerly incarcerated to mentor justice-involved youth. Through two focus groups, this study explored the change experiences of 11 peer mentors who participated in the 6-week training. Data analysis revealed five themes and one...