Switzerland and the Netherlands have done just that, with promising results: http://www.economist.com/news/united-states/21595963-how-make-heroin-less-deadly-ho

Switzerland and the Netherlands have done just that, with promising results: http://www.economist.com/news/united-states/21595963-how-make-heroin-less-deadly-hoffmans-habit http://www.economist.com/news/united-states/21595963-how-mak...