Drug Checking services are integrated services that enable drug users that bought their drugs on the grey or black market to have these substances chemically analyzed as well as to receive advice and - if necessary - consultation and counseling related to their use of drugs.
The implementation of drug checking services, for more than 20 years, has transformed them into powerful tools for monitoring recreational drug markets. The Trans-European Drug Information project (TEDI) is a network of 14 European drug checking services that share and collect their expertise and data within a European monitoring and information system. During 2018, TEDI developed a new database system that collects, monitors and analyses the evolution of various European drug trends in recreational settings. First results and trends from the TEDI database will be presented.