How do we stop drug-related crime?

Apparently around 70% of crime is drug-related. In Switzerland recently they voted to allow heroin addicts to be given heroin on prescription. Do you agree with this?

It seems to me that drug users should be treated as ill and not criminals. The way to tackle the crime=related symptoms is to provide the drug on a prescription basis - on the use it straight away basis, in a specialist drug centre as part of a treatment programme. If the addicts are prepared to stick to the tight control of their usage then they can have the drug for free and would not need to commit crime
to fund the habit. This seems a sensible approach.

Of course I would like the causes of drug-use to be tackled.
Since drug users are mainly brought up without a father in broken families, these are the groups that should be targeted.
Thus if families were rewarded for staying together (rather than penalised as in UK) and fathers were rewarded for staying involved after separation rather than persecuted (as hap[pens in UK), then this would be better for kids.
It would also reduce drug use and drug related crime.
What do you think?