The Platzspitz or “Needle Park”  in Zürich was one of the world’s most  notorious open drug scenes, attracting users from all over Europe. After  its closure, a new drugs policy was introduced in Switzerland to better  protect drug addicts. Dr André Seidenberg  was a pioneer of this  approach. Swiss TV took him back to the Needle Park, along with a heroin  addict who was heavily involved in the scene at that time. (See also: Ten years of heroin handouts fixes drug crime, Swissinfo, January 24, 2004)