the torah and gemara run a full criminal system: makkos for violating prohibitions, payment for damages, galus to a city of refuge for accidental killing, and for the worst sins the four death penalties of beis din. but the one punishment that runs every modern system is missing: prison. no jail time, no cells, no sentences of years.

1. why not? did the torah consider prison and reject it, or is it simply absent? is there something about locking a person up that the torah’s justice refuses, taking years of a life without fixing anything?

2. is prison actually a better or worse answer than what the torah prescribes? lashes are over in minutes and the person goes home. galus exiles the killer but protects him. is the torah’s system about paying a debt and moving on, while prison is about storage?

3. what is the halacha today, when jewish courts have no power and the state runs prisons? does halacha recognize imprisonment at all, for example for someone dangerous who cannot be left loose? can a beis din or a community ever lock someone up?

4. and what is the ideal? if a jewish society running on the torah had a violent repeat offender, what would it actually do with him?

bottom line: why is there no prison in the torah, what does that say about what punishment is for, and what is the halacha of prison today?