On 6 and 7 June 2017, the EMCDDA brought together more than forty European and international experts for a meeting on the key indicator Prevalence and patterns of drug use among the general population (GPS). There were a range of presentations from both EU Member States and other countries, projects and institutions. These regular meetings on the indicator change their focus from year to year. This year, particular attention has been given to methodological developments on the indicator, the link between drug use surveys and drug policies, and targeted surveys in drug use whilst serving as a platform for discussion on drug use issues. Also see our GPS indicator page and our Statistical Bulletin website where we present the detailed methodological information about national surveys and where you will find the most recent data available.