The city of Utrecht wants to convince mentally ill marijuana users to smoke better pot

This fall, the city will distribute a "special cannabis variant" to a select group of mentally ill addicts
The Atlantic Citylab (US)
Friday, September 13, 2013

Thanks in part to the Netherlands' policy of marijuana decriminalization, there are people living in the Dutch city of Utrecht whose addiction to cannabis prevents them from getting effective treatment for mental illness. According to a September 10 statement from Utrecht Mayor Wolfsen, "There is a group of about eighty people with a chronic psychotic disorder who barely respond to their treatment. A possible explanation for this is their severe dependence [on] cannabis."