For context, this question came from discussions around some sentence lengths seen in the US prison system - where individuals can end up being sentenced for terms far exceeding their possible natural life (hundreds of years, etc).
Were it the case that reincarnation were possible, and said prisoner, after death, continued in a new body with no memories of their past life or crimes, would they still be morally obligated to finish their sentence? Would this depend on their knowledge of their past life?
(In turn, would the state be morally obligated to find and re-arrest the prisoner, were such identification possible?)
(If the argument in favour is that losing their memories made them no longer culpable, would that not mean a sufficiently traumatic brain injury, for example, would also justify freeing them?)