It's not often that I have the opportunity to feel proud of the legislators in my home country, but Portugal has been on the leading edge of drug prevention and rehabilitation since we moved from a "war on drugs" to a program of health risk prevention and removed the weight of criminal charges and proceedings from the equation.
Some interesting articles below:
http://www.huffingtonpost.com/2015/02/03/portugal-drug-decri...
http://www.tdpf.org.uk/blog/drug-decriminalisation-portugal-...