Professor Harper has been the Chief Scientist and Head of Profession for scientists in the Department of Health since 1996. He was appointed to his current post as Director General of Health Improvement and Protection at the beginning of 2008.
Professor Harper had previously been Director General of Health Protection, International Health and Scientific Development since 2003.
He is a Fellow of the Institute of Biology and a Fellow of the Faculty of Public Health of the Royal College of Physicians. Professor Harper was awarded a CBE in 2002. He has an Honorary Professorship at the University of Dundee.