The death penalty specifically doesn't have a deterrent effect, but as part of a society so strict that wants to use it for almost everything (obviously an exag

The death penalty specifically doesn't have a deterrent effect, but as part of a society so strict that wants to use it for almost everything (obviously an exaggeration, but still...) you have plenty of people living in fear and unlikely to try anything. At a great cost even if proponents won't admit it.