Capital and Corporal punishment work sometimes not all the time. I think that the crime should match the time. Sometimes people get more time then what they should and that makes some people wanna do something else. Everyone is different so they wont think the same or feel the same way either. Some people learn from talking other learn other way.
England use to torture people very bad. I would not say that I would say that it worked or fair but being that it worked they didnt try to do anything else because people was scare. If they had scared the people that nobody who cross them.