Foskett v McKeown

Tracing and following The process of ascertaining what happened to the plaintiffs' money involves both tracing and following. These are both exercises in locating assets which are or may be taken to represent an asset belonging to the plaintiffs and to which they assert ownership. The processes of following and tracing are, however, distinct. Following is the process of following the same asset as it moves from hand to hand. Tracing is the process of identifying a new asset as the substitute for the old. Where one asset is exchanged for another, a claimant can elect whether to follow the original asset into the hands of the new owner or to trace its value into the new asset in the hands of the same owner. In practice his choice is often dictated by the circumstances. In the present case the plaintiffs do not seek to follow the money any further once it reached the bank or insurance company, since its identity was lost in the hands of the recipient (which in any case obtained an unassailable title as a bona fide purchaser for value without notice of the plaintiffs' beneficial interest). Instead the plaintiffs have chosen at each stage to trace the money into its proceeds, viz. the debt presently due from the bank to the account holder or the debt prospectively and contingently due from the insurance company to the policy holders.

Having completed this exercise, the plaintiffs claim a continuing beneficial interest in the insurance money. Since this represents the product of Mr. Murphy's own money as well as theirs, which Mr. Murphy mingled indistinguishably in a single chose in action, they claim a beneficial interest in a proportionate part of the money only. The transmission of a claimant's property rights from one asset to its traceable proceeds is part of our law of property, not of the law of unjust enrichment. There is no "unjust factor" to justify restitution (unless "want of title" be one, which makes the point). The claimant succeeds if at all by virtue of his own title, not to reverse unjust enrichment. Property rights are determined by fixed rules and settled principles. They are not discretionary. They do not depend upon ideas of what is "fair, just and reasonable." Such concepts, which in reality mask decisions of legal policy, have no place in the law of property.

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The correct classification of the plaintiffs' cause of action may appear to be academic, but it has important consequences. The two causes of action have different requirements and may attract different defences.

A plaintiff who brings an action in unjust enrichment must show that the defendant has been enriched at the plaintiff's expense, for he cannot have been unjustly enriched if he has not been enriched at all. But the plaintiff is not concerned to show that the defendant is in receipt of property belonging beneficially to the plaintiff or its traceable proceeds. The fact that the beneficial ownership of the property has passed to the defendant provides no defence; indeed, it is usually the very fact which founds the claim. Conversely, a plaintiff who brings an action like the present must show that the defendant is in receipt of property which belongs beneficially to him or its traceable proceeds, but he need not show that the defendant has been enriched by its receipt. He may, for example, have paid full value for the property, but he is still required to disgorge it if he received it with notice of the plaintiff's interest.

Furthermore, a claim in unjust enrichment is subject to a change of position defence, which usually operates by reducing or extinguishing the element of enrichment. An action like the present is subject to the bona fide purchaser for value defence, which operates to clear the defendant's title.