Leon Holtzhausen holds a PhD (Criminal Justice Social Work) a MSW (Community Development) and a BSW (Bachelor of Social Work). He is the Head of Department of Social Work & Social Development at the University of Cape Town, South Africa. His research focus is broadly situated in the field of social justice, crime and violence. More specifically, Criminal Justice Social Work (CJSW), including Forensic Social Work, Prison Social Work and Substance Use Disorders. He also undertakes research with vulnerable children, youth and adults, with a focus on the assessment and intervention with child and youth sex offenders, trauma work with survivors of child abuse and Adverse Childhood Experiences (ACEs).