It would be disposable cig a likes.
Also, punishment? We are supposed to be attempting to rehabilitate criminals so they can re enter society when released. Otherwise we would keep them locked up forever.
"Punishment", or torture never works, and only makes more criminals.
It's legal to become heavily addicted to
tobacco. Approved and taxed by the state. Addiction withdrawals from using a product marketed and approved by the state could be argued as evidence of cruel and unusual punishment.
Withdrawals can also make for irritable, angry convicts, who pose problems for guards trying to keep things peaceful.
Sounds like a win win situation if it works out.