Global Drug Survey (GDS) runs the world's biggest drug survey and provides invaluable insight into the world's drug taking habits. For the second year running, more than 100,000 people from over 50 countries were surveyed. GDS has a proven track record in being able to track trends over time, profile new drugs and identify key issues of relevance and importance to people who use drugs and those who craft public health and drug policy. GDS aims to help people and communities reduce the harm associated with drug use by sharing credible information A total of 101,313 people from 30 countries participated in GDS2016.