The implementation of the death penalty has been proven to be a more effective deterrent than the maximum punishment offered by the Canadian justice system. Of course, the debate over whether or not to use the “lock them up, throw away the key” mentality towards criminals has been going back and forth for a long time. But now we're seeing more effective treatments through rehabilitation efforts, which I think are starting to turn some people away from this way of thinking. For example, although the sex offender registry is a good deterrent for sex offenders, the fact that you do not have to re-register when you move to a new province is an example of how deterrence in Canada still has some problems to solve; to make it more complete