More crimes are committed as the addicts can't afford the drugs they're addicted to, so they rob n steal to they have the money to buy a fix, so we can kill three birds with one stone, the dealer, the pusher and the addict in one throw buy just allowing it legally, as, prices will be dead low, the dealer has no reason to import high amounts of class a and b drugs to a country, the pusher will hardly make any money from pushing and the addict will be able to buy all s/he wants from the money they get from their job or giro.
Just think of all that money saved on burgulry, petty theft, robbing, mugging, cars being broken into, Police won't have to raid homes, or go on long surveillance operations.
I used to be so effed off about drug addicts, drug dealers, pushers and the such, as I already replied, let em kill themselves, their body they are killing.