“Dr med Peter Hoffman, the representative of Docdiqmed (the payee in the cheques) wanted information on where he could source scrap metal. HB was dealing with a company called Maxximmo in Switzerland who were providing the information. HB said [Montres Lunesa] is the subsidiary of Maxximmo. HB met Dr Hoffman and took the cheques as payment for providing the information (as a middleman) and gave him the information on where the scrap metal could be sourced. He mentioned the Congo. ... HB said that he waited until the cheques cleared and had even telephoned Belfast to confirm they were paid and cleared for his use before he made payments out. I asked if he had some back up paperwork to show the details of the buying and selling which he agreed to provide when he returned to the office the next day. HB said that the funds he had sent to Switzerland for himself was his commission on the deal, he agreed that he would give the instruction to return the funds (Euro 116k). …”
“… I agree that the stolen moneys are traceable in equity. But the proprietary interest which equity is enforcing in such circumstances arises under a constructive, not a resulting, trust. Although it is difficult to find clear authority for the proposition, when property is obtained by fraud equity imposes a constructive trust on the fraudulent recipient: the property is recoverable and traceable in equity. Thus, an infant who has obtained property by fraud is bound in equity to restore it: Stocks v. Wilson [1913] 2 K.B. 235 , 244;R Leslie Ltd v. Sheill [1914] 3 K.B. 607 . Moneys stolen from a bank account can be traced in equity:Bankers Trust Co v. Shapira [1980] 1 W.L.R. 1274 , 1282C–E: see alsoMcCormick v. Grogan (1869) L.R. 4 H.L. 82, 97.”
“In order to establish a claim to a share in the fund, claimants must show that they have a proprietary right, i.e. a right in property and not simply a debt due from IMB. There are three relevant bases for such a claim, and most of the claimants have a claim (if any) under the first basis, which is that a person who has been defrauded may trace property into the hands of the recipient. “… [W]hen property is obtained by fraud equity imposes a constructive trust on the fraudulent recipient: the property is recoverable and traceable in equity”:Westdeutsche Landesbank Girozentrale v. Islington London Borough Council[1996] AC 669 , 716. The victims of fraud can follow their money in equity through bank accounts where it has been mixed with other money because equity treats the money in such accounts as charged with the repayment of their money:El Ajou v. Dollar Land Holdings plc (No. 1)[1993] 3 All ER 717 (rev’d on other grounds[1994] 1 All ER 685 ). See also Bristol and West Building Society v. Mothew[1998] Ch 1 ; Bankers Trust Co. v. Shapira[1980] 1 WLR 1274 , 1282. In Bank of Credit and Commerce International (Overseas) Ltd (in liquidation) and another v. Akindele[2001] Ch 437 it was held that the recipient's state of knowledge should be such as to make it unconscionable for him to retain the benefit of the receipt. Consequently, even if IMB Morgan was not a party to the frauds, the defrauded claimants have a tracing remedy. The second basis for a claim is that a payment was made by mistake. Whether a person who has made a payment by mistake has a proprietary claim is by no means clear. But I am satisfied that in a case of this kind, where (as in the case of the payment by Citizens Union Bank) double payment was made at the request of the recipient (IMB Morgan), where there is an identifiable fund, and where the recipient has notice of the claim, it would be unconscionable for IMB Morgan (and in effect the other claimants to the fund) to retain the benefit of that payment: Chase Manhattan Bank v. Israel-British Bank[1981] Ch. 10 , as explained in Westdeutsche Landesbank Girozentrale v. Islington London Borough Council[1996] AC 669 , 714–715; Virgo, Principles of the Law of Restitution (1999), pp 630–632; and see also Papamichael v. National Westminster Bank plc[2003] EWHC 164 (Comm) ,[2003] 1 Lloyd's Rep 341 (Judge Chambers QC). Third, where money is paid for a purpose which is not fulfilled, the recipient holds the money on trust for the payer: Barclays Bank Ltd v. Quistclose Investments Ltd[1970] AC 567 ; Carreras Rothmans Ltd v. Freeman Matthews Treasure Ltd[1985] 1 All ER 155 … .”
“Whoever has been unjustly enriched out of another person’s property shall make restitution of such enrichment. In particular, this obligation shall arise if a person has received something without any valid cause, or for a cause which did not materialise, or which subsequently ceased to exist.”