I've been thinking about prison systems and how most of them focus on punishment to deter crime. There are some prisons which focus on rehabilitation instead of punishment and they seem to be pretty effective.
What I want to know is how far can this rehabilitation model be taken? Can all criminals be given such a chance to become better and redeem themselves? Can this be applied to very serious crimes like murder, terrorism, sexual assault etc? Do people who've committed these crimes deserve a chance at redemption or be rehabilitated? Does the severity of the crime change anything? What is, if there is a limit, on repeat offences? If someone already had a chance to better themselves and didn't, should they be given more chances? And the biggest question I have is at what point is someone redeemed? How do you weed out the people who are just faking being reformed?
Is there any material I can read up on that discusses these questions?
I apologize if this is a repost and similar questions have been asked before