In Introduction Bentham considers a difficulty. If the immediate aim of punishment is to deter agents considering breaking the law, then the severity of the threat of punishment must increase if they are strongly tempted to offend. But it seems intuitively that some people who were strongly tempted to offend should be punished leniently. Bentham argues in response that all potential offenders capable of being deterred must be deterred. He makes three mistakes. It is possible that it would produce the (...) most happiness at t2 to punish an offender who could have been deterred at t1, but was not. The Principle of Utility might condemn the threats that would be needed to deter all potential offenders who can be deterred. Given the dispositions to reoffend of some strongly tempted offenders, their punishments should be relatively lenient. There is more room for leniency in Bentham's theory than he realized. (shrink)