Professor Michael Gossop is a leading researcher at the National Addiction Centre, King’s College London. For more than 30 years, he worked in the addiction treatment services at the Maudsley Hospital in London. His publications include more than 400 works. He has acted as Specialist Adviser on drug misuse to the House of Commons Select Committee on Science and Technology, and as an expert adviser on substance misuse problems to the Department of Health, the Ministry of Justice, the Home Office, and to other Government Departments. In 1998, he was presented with the European Addiction Research Award for “outstanding contributions to the advancement of addiction research”.