The Pompidou Group is an intergovernmental, multidisciplinary body within the framework of the Council of Europe (Strasbourg), in which government representatives and experts from 31 European member states co-operate in combating drug abuse and illicit trafficking in drugs. In 1998 two studies were elaborated on behalf of the group: 1) a review of investigations of prevalence of illicit drugs in road traffic in thirteen European countries, on the basis of existing recent studies and research; and 2) a panorama of legal provisions and difficulties in enforcement faced by the police as well as an analysis of prevention attempts in eleven European countries, on the basis of information collected by questionnaire and fact-finding missions. They both showed a clear need to go deeper into these matters and to exchange information and experience on a European level between the various categories of experts involved, in theory and practice, in the problems related to road traffic and drugs. A seminar on the theme "Road traffic and illicit drugs" was organised in Strasbourg from 19 - 21 April 1999, bringing together 75 experts from 28 countries from Europe and the United States of America, major European governmental bodies, in particular the European Commission and the European Monitoring Centre for Drugs and Drug Addiction (Lisbon), as well as ICADTS and the European Road Safety Federation. This paper presents some comments from the point of view of a member of the Pompidou Group Secretariat. The full text of conclusions and recommendations from the seminar can be found in the enclosed appendix.