The situation with heroin is much more pressing. We need to supply addicts with a decent, regular fix. Unregulated heroin leads to increasing numbers of users, as addicts persuade others to use in order to "go halves". Also they sometimes pay for their own use through dealing. It also creates epidemic levels of burglary. They trialled such a programme of Heroin provision in Plymouth. The burglary rate practically evaporated within a few weeks.
The other thing the study showed was that addicts could stabilise their lives, start work /education and generally sort themselves out.
Prohibition has been disastrous in this regard.
Obviously legal heroin wouldn't mean general sale. It would be prescribed and monitored. Methodone is pointless. Addicts generally don't like it and still top up with illicit heroin.
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