He has worked with private organizations and governmental agencies in a variety of countries. Dr. Hoffmann served on an accreditation panel for the British Home Office and currently does accreditation reviews for the European Addiction Treatment Association. He has developed a variety of assessments instruments used throughout the United States, as well as in Canada, Sweden, Norway, and the United Kingdom. He has also designed student surveys to assess needs and evaluate prevention impacts. Dr. Hoffmann is the author of more than 150 publications and has held faculty appointments at the University of Texas Medical Branch, University of Minnesota and Brown University. Currently he is President of Evince Clinical Assessments and adjunct professor of psychology at Western Carolina University.