  The legal enunciation of rules of criminal law (mostly “prohibitions”) has as its primary goal the elimination or at least discouraging of the specified kinds of action (or omission). In this phase of the legal institution of criminal law and punishment, the goal can be called deterrence. The fact that this goal works partly by enforcement and application of the threatened sanction in the event of violation and conviction does not, however, entail that deterrence is the formative or even the primary end of punishment. Indeed, the institution of punishment has its primary sense and justification, not in deterrence, but in the restoration of that presumptively fair balance of burdens and advantages which offenders upset, precisely in choosing to prefer their own purposes and advantage to restraining their action so as to avoid violating the law. In preferring that self-preferential option, offenders help themselves to an advantage over all who do restrain themselves so as to respect the law. The offenders thereby upset the presumptively fair balance of advantages and burdens between themselves and the law-abiding. The primary purpose of punishment thus can reasonably be to restore that disturbed balance by depriving convicted offenders of their unfairly gained advantage—excess freedom of  action—by imposing upon them measures, punishments, whose precise purpose is to restrict their freedom of action, whether by fines or imprisonment, proportionately to the degree to which they indulged their self-preference. Punishment in that way seeks to ensure that, over the span of time running from before the offence to the undergoing of the penalty, no one gains an advantage over fellow citizens by offending.