JochenSchrooten VAD Belgium In programme October 24 19:00 to 19:10 View hours & dates Hours & Dates Plenary session Poster session Big debate Structured session Workshop Oral presentation session Short communication session Poster guided tour Thursday, 24 October 19:00 Short communication Why a zero tolerance drug policy for festivals is not working (well) 19:00 to 19:10 Networking zone 3 (N3) Jochen Schrooten