In contract law, unjust enrichment occurs when one person is enriched at the expense of another in circumstances that the law sees as unjust. Where an individual is unjustly enriched, the law imposes an obligation upon the recipient to make restitution, subject to defences such as change of position. Liability for an unjust enrichment arises irrespective of wrongdoing on the part of the recipient. The concept of unjust enrichment can be traced to Roman law and the maxim that "no one should be benefited at another's expense": nemo locupletari potest aliena iactura or nemo locupletari debet cum aliena iactura.
The law of restitution is the law of gains-based recovery. It is to be contrasted with the law of compensation, which is the law of loss-based recovery. When a court orders restitution it orders the defendant to give up his/her gains to the claimant. When a court orders compensation it orders the defendant to pay the claimant for his or her loss.
A constructive trust is an equitable remedy imposed by a court to benefit a party that has been wrongfully deprived of its rights due to either a person obtaining or holding a legal property right which they should not possess due to unjust enrichment or interference, or due to a breach of fiduciary duty, which is intercausative with unjust enrichment and/or property interference. It is a type of implied trust, i.e., it is created by conduct, not explicitly by a settlor.
Equitable remedies are judicial remedies developed by courts of equity from about the time of Henry VIII to provide more flexible responses to changing social conditions than was possible in precedent-based common law.
English trust law concerns the creation and protection of asset funds, which are usually held by one party for another's benefit. Trusts were a creation of the English law of property and obligations, but also share a history with countries across the Commonwealth and the United States. Trusts developed when claimants in property disputes were dissatisfied with the common law courts and petitioned the King for a just and equitable result. On the King's behalf, the Lord Chancellor developed a parallel justice system in the Court of Chancery, commonly referred as equity. Historically, trusts were mostly used where people left money in a will, created family settlements, created charities, or some types of business venture. After the Judicature Act 1873, England's courts of equity and common law were merged, and equitable principles took precedence. Today, trusts play an important role in financial investments, especially in unit trusts and pension trusts, where trustees and fund managers usually invest assets for people who wish to save for retirement. Although people are generally free to write trusts in any way they like, an increasing number of statutes are designed to protect beneficiaries, or regulate the trust relationship, including the Trustee Act 1925, Trustee Investments Act 1961, Recognition of Trusts Act 1987, Financial Services and Markets Act 2000, Trustee Act 2000, Pensions Act 1995, Pensions Act 2004 and the Charities Act 2011.
The English law of unjust enrichment is part of the English law of obligations, along with the law of contract, tort, and trusts. The law of unjust enrichment deals with circumstances in which one person is required to make restitution of a benefit acquired at the expense of another in circumstances which are unjust.
The English law of Restitution is the law of gain-based recovery. Its precise scope and underlying principles remain a matter of significant academic and judicial controversy. Broadly speaking, the law of restitution concerns actions in which one person claims an entitlement in respect of a gain acquired by another, rather than compensation for a loss.
Dishonest assistance, or knowing assistance, is a type of third party liability under English trust law. It is usually seen as one of two liabilities established in Barnes v Addy, the other one being knowing receipt. To be liable for dishonest assistance, there must be a breach of trust or fiduciary duty by someone other than the defendant, the defendant must have helped that person in the breach, and the defendant must have a dishonest state of mind. The liability itself is well established, but the mental element of dishonesty is subject to considerable controversy which sprang from the House of Lords case Twinsectra Ltd v Yardley.
Yaxley v Gotts [1999] is an English contract law case with specific relevance to formalities in land law. The case deals with whether section 2 of the Law of Property Act 1989 which requires that contracts be in writing prevents an oral contract from taking effect where otherwise an interest would arise by proprietary estoppel, i.e. whether the provision in subsection 5 on resulting, implied or constructive trusts covers also proprietary estoppel.
Constructive trusts in English law are a form of trust created by the English law courts primarily where the defendant has dealt with property in an "unconscionable manner"—but also in other circumstances. The property is held in "constructive trust" for the harmed party, obliging the defendant to look after it. The main factors that lead to a constructive trust are unconscionable dealings with property, profits from unlawful acts, and unauthorised profits by a fiduciary. Where the owner of a property deals with it in a way that denies or impedes the rights of some other person over that property, the courts may order that owner to hold it in constructive trust. Where someone profits from unlawful acts, such as murder, fraud, or bribery, these profits may also be held in constructive trust. The most common of these is bribery, which requires that the person be in a fiduciary office. Certain offices, such as those of trustee and company director, are always fiduciary offices. Courts may recognise others where the circumstances demand it. Where someone in a fiduciary office makes profits from their duties without the authorisation of that office's beneficiaries, a constructive trust may be imposed on those profits; there is a defence where the beneficiaries have authorised such profits. The justification here is that a person in such an office must avoid conflicts of interest, and be held to account should he fail to do so.
Tracing in English law is a procedure to identify property that has been taken from the claimant involuntarily. It is not in itself a way to recover the property, but rather to identify it so that the courts can decide what remedy to apply. The procedure is used in several situations, broadly demarcated by whether the property has been transferred because of theft, breach of trust, or mistake.
The Attorney General for Hong Kong v Reid (UKPC)[1993] UKPC 2[1993] UKPC 1993_36 was a New Zealand-originated trust law case heard and decided by the Judicial Committee of the Privy Council, where it was held that bribe money accepted by a person in a position of trust, can be traced into any property bought and is held on constructive trust for the beneficiary.
Westdeutsche Landesbank Girozentrale v Islington LBC[1996] UKHL 12 is a leading English trusts law case concerning the circumstances under which a resulting trust arises. It held that such a trust must be intended, or must be able to be presumed to have been intended. In the view of the majority of the House of Lords, presumed intention to reflect what is conscionable underlies all resulting and constructive trusts.
Foskett v McKeown[2000] UKHL 29 is a leading case on the English law of trusts, concerning tracing and the availability of proprietary relief following a breach of trust.
Bishopsgate Investment Management Ltd v Homan [1994] EWCA Civ 33 is an English trusts law case about whether a beneficiary whose fiduciary breaches trust, may trace assets through an overdrawn account to its destination.
Chase Manhattan Bank NA v Israel-British Bank (London) Ltd [1981] Ch 105 is an English trusts law case, concerning constructive trusts. It held that a trust arose to protect a payment made under a mistake, with the benefit of a proprietary remedy. This is seen important for the question of what response, personal or proprietary, may come from a claim in unjust enrichment.
Sinclair Investments (UK) Ltd v Versailles Trade Finance Ltd[2011] EWCA Civ 347 is an English trusts law case, concerning constructive trusts. Sinclair was partially overruled in July 2014 by the UK Supreme Court in FHR European Ventures LLP v Cedar Capital Partners LLC.
Re Diplock or Ministry of Health v Simpson [1951] AC 251 is an English trusts law and unjust enrichment case, concerning tracing and an action for money had and received.
Re Hallett’s Estate (1880) 13 Ch D 696 is an English trusts law case, concerning asset tracing.
FHR European Ventures LLP v Cedar Capital Partners LLC[2014] UKSC 45 is a landmark decision of the United Kingdom Supreme Court which holds that a bribe or secret commission accepted by an agent is held on trust for his principal. In so ruling, the Court partially overruled Sinclair Investments (UK) Ltd v Versailles Trade Finance Ltd in favour of The Attorney General for Hong Kong v Reid (UKPC), a ruling from the Judicial Committee of the Privy Council on appeal from New Zealand.
