The total of drugsrelated incidents (ie. people who are being taken to hospital) decreases at big parties and events. But the over-usage of alcohol causes many more problems.
These are the results of a survey by the Trimbos Institute (Nederlands Institue of Mental Health and Addiction). A lot of wild stories and false rumours are spread concerning drugsuse, according to the survey.
A few problems have occurred in the past, but thanks to the availability of drug testing and the presence of an Emergency Team this number has dropped even more.