Re: SF.com to the rescue
"And how does that explain why Switzerland has one of the worst drug problems in Europe?"
Drug death rates by population
UK 19th
Switzerland 59th
http://www.worldlifeexpectancy.com/cause-of-death/drug-use/by-country/
Zurich 3rd cocaine use behind London and Antwerp
https://www.swissinfo.ch/eng/drug-capitals_zurich-is-europe-s-third-biggest-cocaine-hot-spot/42760246
Feel free to take a look here as well. The UK is pretty much consistently "higher" ranked than Switzerland.
https://www.globaldrugsurvey.com/