in fact the reason there is now such a problem with #ketamine and #cocaine is *because* prohibition had short term gains - Tories put a lot of effort into hammering the illegal #rave culture round here and stopping overt noisy hedonism such as loud parties where #MDMA was more popular - folk are now drinking more #alcohol and taking a few cheeky lines to stay awake, also cocaine and ketamine are shorter lasting so more popular with those who have work on Monday (or even next day).
New DUI laws and random tests *have* discouraged a lot of middle class users (they need to keep their driving licences in a car-dependent region), but leave a stubborn core of those who live in the urban areas and don't have to drive regularly..