Since a long time social work has been the connection between different organizations and at the same time supports the clients at coping with their problems. Since young people in particular are the focus of this bachelor thesis, the question to be examined is, to what extent social work is able to support the developmental processes of adolescence in connection with the penal system. An important aspect of this work will be various developmental areas of adolescents. However, should there be detention during adolescence, these areas of development can only implement slowly or cannot implement at all.This is where social work comes into play. By establishing a sustainable relationship with the adolescent and using adequate counseling and management methods, it helps to work up critical behavior and to develop future-oriented perspectives.