If the protection of children, young people and vulnerable adults cannot be ensured in any other way, the state intervenes in a protective and empowering manner. In this interdisciplinary field, social workers assume responsibility, for example as members of the child and adult protection authorities (KESB). They are also responsible for a large proportion of the clarifications and interventions carried out. The field of activity of social workers also includes other organisations that are involved in child and adult protection, including social services and child and youth welfare centres. Current research results and methodological skills are passed on through continuing education and teaching. Historical aspects of research are examined and practice-oriented questions related to the current situation are brought to the forefront.