The war on drugs. Legalisation would be likely to result in increased use.
Voth
E A
EA
D004335:Drug and Narcotic Control; D006291:Health Policy; D006801:Humans; D013287:Illicit Drugs / Q000331:legislation & jurisprudence*; D007880:Legislation, Drug; D009426:Netherlands
D013287:Illicit Drugs