Aside from resorting to violence, what are your suggestions or answers to solve and deal with drug addicts and users in your country?
In a particular country if drug addiction really is a big problem then the only resort I could think of is violence. Violence decreases the peoples tendency to do drugs because of specific circumstances and laws the government have made. But I guess serving their whole lives in jail is reasonable, this might lead to overpopulation of the prisonhouse.
Too bad that there is no such law to just kill drug addicts like stray dogs/cats in the street. Everyone would consider it as murder and another unsolved crime. It would be another burden and another case to handle for the authorities.
Isolating them in prison I think is a good idea, like putting them in dungeons and just giving them water and food so they won't die. Merging them to other prison might still give them an idea on where to score those drugs.