A second form of vicarious responsibility is that of living representatives for the acts of dead men. There is no doubt that criminal responsibility must die with the wrongdoer himself, but with respect to penal redress the question is not free from difficulty. For in this form of liability there is a conflict between the requirements of the two competing principles of punishment and compensation. The former demands the termination of liability with the life of the wrongdoer, while the latter demands its survival. In this dispute the older common law approved the first of those alternatives. The received maxim was: Actio personalis moritur cum persona. A man cannot be punished in his grave; therefore it was held that all actions for penal redress, being in their true nature instruments of punishment, must be brought against the living offender and must die with him. Modern opinion rejects this conclusion, and by various statutory provisions the old rule has been in great part abrogated. It is considered that although liability to afford redress ought to depend in point of origin upon the requirements of punishment, it should depend in point of continuance upon those of compensation. For when this form of liability has once come into existence, it is a valuable right of the person wronged; and it is expedient that such rights should be held upon a secure tenure, and should not be subject to extinction by a mere irrelevant accident such as the death of the offender. There is no sufficient reason for drawing any distinction in point of survival between the right of a creditor to recover his debt and the right of a man who has been injured by assault or defamation to recover compensation for the loss so suffered by him.

As a further argument in the same sense, it is to be observed that it is not strictly true that a man cannot be punished after his death. Punishment is effective not at the time it is inflicted, but at the time it is threatened. A threat of evil to be inflicted upon a man’s descendants at the expense of his estate will undoubtedly exercise a certain deterrent influence upon him; and the apparent injustice of so punishing his descendants for the offences of their predecessor is in most cases no more than apparent. The right of succession is merely the right to acquire the dead man’s estate, subject to all charges which, on any grounds, and apart altogether from the interests of the successors themselves, may justly be imposed upon it.

There is a second application of the maxim, Actio personalis moritur cum persona, which seems equally destitute of justification. According to the common law an action for penal redress died not merely with the wrongdoer but also with the person wronged. This rule has been abrogated by statute in part only. There can, however, be little doubt that in all ordinary cases, if it is right to punish a person at all, his liability should not cease simply by reason of the death of him against whom his offence was committed. The right of the person injured to receive redress should descend to his representatives like any other proprietary interest.

§ 150. The Measure of Criminal Liability.

We have now considered the conditions and the incidence of penal liability. It remains to deal with the measure of it, and here we must distinguish between criminal and civil wrongs, for the principles involved are fundamentally different in the two cases.

In considering the measure of criminal liability it will be convenient to bestow exclusive attention upon the deterrent purpose of the criminal law, remembering, however, that the conclusions so obtained are subject to possible modification by reference to those subordinate and incidental purposes of punishment which we thus provisionally disregard.

Were men perfectly rational, so as to act invariably in accordance with an enlightened estimate of consequences, the question of the measure of punishment would present no difficulty. A draconian simplicity and severity would be perfectly just and perfectly effective. It would be possible to act on the Stoic paradox that all offences involve equal guilt, and to visit with the utmost rigour of the law every deviation, however slight, from the appointed way. In other words, if the deterrent effect of severity were certain and complete, the best law would be that which by the most extreme and undiscriminating severity effectually extinguished crime. Were human nature so constituted that a threat of burning all offenders alive would with certainty prevent all breaches of the law, then this would be the just and fitting penalty for all offences from high treason to petty larceny. So greatly, however, are men moved by the impulse of the moment, rather than by a rational estimate of future good and evil, and so ready are they to face any future evil which falls short of the inevitable, that the utmost rigour is sufficient only for the diminution of crime, not for the extinction of it. It is needful, therefore, in judging the merits of the law, to subtract from the sum of good which results from the partial prevention of offences, the sum of evil which results from the partial failure of prevention and the consequent necessity of fulfilling those threats of evil by which the law had hoped to effect its purpose. The perfect law is that in which the difference between the good and the evil is at a maximum in favour of the good, and the rules as to the measure of criminal liability are the rules for the attainment of this maximum. It is obvious that it is not attainable by an indefinite increase of severity. To substitute hanging for imprisonment as the punishment for petty theft would doubtless diminish the frequency of this offence, but it is certain that the evil so prevented would be far outweighed by that which the law would be called on to inflict in the cases in which its threats proved unavailing.

In every crime there are three elements to be taken into account in determining the appropriate measure of punishment. These are (1) the motives to the commission of the offence, (2) the magnitude of the offence, and (3) the character of the offender.

1. The motive of the offence. Other things being equal, the greater the temptation to commit a crime the greater should be the punishment. This is an obvious deduction from the first principles of criminal liability. The object of punishment is to counteract by the establishment of contrary and artificial motives the natural motives which lead to crime. The stronger these natural motives the stronger must be the counteractives which the law supplies. If the profit to be derived from an act is great, or the passions which lead men to it are violent, a corresponding strength or violence is an essential condition of the efficacy of repressive discipline. We shall see later, however, that this principle is subject to a very important limitation, and that there are many cases in which extreme temptation is a ground of extenuation rather than of increased severity of punishment.

2. The magnitude of the offence. Other things being equal, the greater the offence, that is to say the greater the sum of its evil consequences or tendencies, the greater should be its punishment. At first sight, indeed, it would seem that this consideration is irrelevant. Punishment, it may be thought, should be measured solely by the profit derived by the offender, not by the evils caused to other persons; if two crimes are equal in point of motive, they should be equal in point of punishment, notwithstanding the fact that one of them maybe many times more mischievous than the other. This, however, is not so, and the reason is twofold.