This looks interesting...
Should North Wales take leaf out of Portugal's book to combat drugs epidemic?
The North Wales Police and Crime Commissioner has been to Lisbon to see how they tackle narcotics.
Mr Jones, a former police inspector, spent four days filming in the Portuguese capital with a TV crew from the BBC Wales current affairs programme Week In Week Out entitled Cop-out on Drugs, to be screened at 10.40pm on BBC1 Wales tomorrow evening....... . .......The cost of the trip was met by the BBC.

We looked at how drug users are actually dealt with. If a police officer stops someone in the street who has cannabis on them if they have less than 10 days’ supply they are referred to what’s called a dissuasion commission which will then decide how to deal with them.
“If they are identified as a non-problematical or recreational user, as is mostly the case with cannabis and with 90 per cent of drug users in most countries, they give them information on the dangers of taking drugs and also a suspended sanction which means no action is taken against them.
http://www.dailypost.co.uk/news/north-wales-news/should-north-wales-take-leaf-12733004