Over the last decade, new psychoactive substances (NPS) have started to spread globally along with other emerging drug threats such as new use patterns and toxic adulterants found in drugs. This fast-changing and very dynamic drug market requires close monitoring, early detection and timely responses to counter such emerging drug threats. Through the collection of such information, early warnings can be produced. These act as a communication tool to spread advance notice to relevant stakeholders in order to prevent or reduce the risk of harm, increase risk awareness and improve safety.