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<Good_things_happen/> Welcome to Conference

M. A.

Daan van der Gouwe

Trimbos-Institute, Utrecht Area, Netherlands

Daan van der Gouwe has a master in Sociology and is a researcher involved in monitoring the Dutch market in illicit drugs. He works with the Department Drug Monitoring and Policy for the project Drugs Information and Monitoring System (DIMS). DIMS coordinates the practice of drug testing in the Netherlands, where consumers can have their drugs tested on content. Van der Gouwe also monitors the so-called New Psychoactive Substances (NPS), for where drugs are discussed and the online markets for drugs, and was involved in the EC-funded project I-trend. He also published various papers on this issue. Further to that, Van der Gouwe has gained expertise in the field of project and policy evaluations. E.g. recently he was involved in the evaluation of the National Drug Strategy of the Republic of Croatia, the assessment of misuse and diversion of Opioid Substitution Treatment medication in Croatia and an evaluation of a large Global Fund funded Eurasian Harm Reduction Network project in Eastern Europe and Central Asia. Van der Gouwe is also involved in the Central Asia Drugs Action Programme (CADAP), in which Trimbos support governments and other stakeholders in realizing evidence-based drug policies. Finally, Van der Gouwe is one of the leading spokespersons for Trimbos when it comes to drug-related issues.

Conference Presentations


Use of psychedelic substances in Europe, and purity, prices and adulteration in the Netherlands

This presentation will cover essential aspects to understand the drug checking system in the Netherlands (DIMS), after which data and trends regarding purity, prices and adulterations of a number of psychedelics in the Netherlands will be presented: LSD, ketamine, 2C-B. For LSD and 2C-B, purity, price and adulterations of samples bought offline will be compared to those bought online. The presentation finishes off with available data regarding use of psychedelics in Europe (EMCDDA) and from recent surveys in the Netherlands.

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Conference tickets

With your ticket you will have access to the whole conference - with keynotes, panels, round tables, posters and daylight social events. We will ask for a small extra fee for the Friday evening social program. The pre-conference workshops have to be booked separately and each workshop needs an individual ticket. By clicking on "Book now" below you also have the option to buy your workshop tickets.

*Reduced fees apply to students, cooperation partners as well as unemployed and retired individuals who have a monthly net income below 840,- €. Proof of status will be required.

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Catering service


With this ticket you can use the catering service all inclusive for three days. The service includes coffee, water, tea and fruit.


after 14 April 2019

  • Standard €250
  • Reduced €150*
  • MIND members Standard €180
  • MIND members Reduced €90



  • Donate €600 or more
  • Invite a friend/colleague to be your VIP guest at the event

Get our lovely INSIGHT 2019 conference news

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