But now suppose that a title to property is clearly identifiable as criminal, does this necessarily mean that the current possessor must give it up? No, not necessarily. For that depends on two considerations: (a) whether the victim (the property owner originally aggressed against) or his heirs are clearly identifiable and can now be found; or (b) whether or not the current possessor is himself the criminal who stole the property. Suppose, for example, that Jones possesses a watch, and that we can clearly show that Jones’s title is originally criminal, either because (1) his ancestor stole it, or (2) because he or his ancestor purchased it from a thief (whether wittingly or unwittingly is immaterial here). Now, if we can identify and find the victim or his heir, then it is clear that Jones’s title to the watch is totally invalid, and that it must promptly revert to its true and legitimate owner. Thus, if Jones inherited or purchased the watch from a man who stole it from Smith, and if Smith or the heir to his estate can be found, then the title to the watch properly reverts immediately back to Smith or his descendants, without compensation to the existing possessor of the criminally derived “title.” Thus, if a current title to property is criminal in origin, and the victim or his heir can be found, then the title should immediately revert to the latter.
Suppose, however, that condition (a) is not fulfilled: in short, that we know that Jones’s title is criminal, but that we cannot now find the victim or his current heir. Who now is the legitimate and moral property owner? The answer to this question now depends on whether or not Jones himself is the criminal, whether Jones is the man who stole the watch. If Jones was the thief, then it is quite clear that he cannot be allowed to keep it, for the criminal cannot be allowed to keep the reward of his crime; and he loses the watch, and probably suffers other punishments besides.
But suppose that Jones is not the criminal, not the man who stole the watch, but that he had inherited or had innocently purchased it from the thief. And suppose, of course, that neither the victim nor his heirs can be found. In that case, the disappearance of the victim means that the stolen property comes properly into a state of no-ownership. But we have seen that any good in a state of no-ownership, with no legitimate owner of its title, reverts as legitimate property to the first person to come along and use it, to appropriate this now unowned resource for human use. But this “first” person is clearly Jones, who has been using it all along. Therefore, we conclude that even though the property was originally stolen, that if the victim or his heirs cannot be found, and if the current possessor was not the actual criminal who stole the property, then title to that property belongs properly, justly, and ethically to its current possessor.