Daniel Deimel is Professor of Clinical Social Work at the Catholic University of Applied Sciences in North Rhine-Westphalia, Aachen and at the German Institute for Addiction and Prevention Research (DISuP). Daniel Deimel is also a visiting researcher at the University of Duisburg-Essen, Medical Faculty and LVR-Hospital Essen, Department of Addictive Behavior and Addiction Medicine. He holds a degree in social work (Dipl.), in addiction prevention and addiction therapy (M.Sc.) and a PhD in rehabilitation sciences. Daniel Deimel`s work focuses on HIV and addiction research in the social sciences, project development and evaluation expertise especially in health promotion for vulnerable and marginalized groups, drug and HIV/ADIS services and evidence based social work. He published more than 60 scientific papers in scientific journals, book chapters and monographs.