This volume presents possibilities for the substantive development in the areas of counseling, support, and treatment in drug assistance, which can help meet the constantly changing performance requirements of clients and service providers. The contributions explain the theoretical backgrounds and practical action options in the support of adolescents who consume and are dependent on substances in the penal system, as well as the psychosocial support for those undergoing substitution therapy and the adaptation as a service of medical rehabilitation for those with addiction issues. Additional focuses include outpatient supported living and sports as a means of stress management. Finally, conceptual developments in these areas of drug assistance are presented. The book is aimed at researchers and practitioners.