Estoppel is a judicial device in common law legal systems whereby a court may prevent or "estop" a person from making assertions or from going back on their word; the person so prevented is said to be "estopped". Estoppel may prevent someone from bringing a particular claim. Legal doctrines of estoppel are based in both common law and equity. Estoppel is also a concept in international law.
A legal remedy, also referred to as judicial relief or a judicial remedy, is the means with which a court of law, usually in the exercise of civil law jurisdiction, enforces a right, imposes a penalty, or makes another court order to impose its will in order to compensate for the harm of a wrongful act inflicted upon an individual.
A resulting trust is an implied trust that comes into existence by operation of law, where property is transferred to someone who pays nothing for it; and then is implied to hold the property for the benefit of another person.
In trust law, 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.
Ex turpi causa non oritur actio is a legal doctrine which states that a plaintiff will be unable to pursue legal relief and damages if it arises in connection with their own tortious act. The corresponding Ex turpe causa non oritur damnum, "From a dishonourable cause, no damage arises" is a similar construction. Particularly relevant in the law of contract, tort and trusts, ex turpi causa is also known as the illegality defence, since a defendant may plead that even though, for instance, he broke a contract, conducted himself negligently or broke an equitable duty, nevertheless a claimant by reason of his own illegality cannot sue. The UK Supreme Court provided a thorough reconsideration of the doctrine in 2016 in Patel v Mirza.
English trust law concerns the protection of assets, usually when they are held by one party for another's benefit. Trusts were a creation of the English law of property and obligations, and share a subsequent 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 have mostly been used where people have left money in a will, or created family settlements, 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 investment, especially in unit trusts and in pension trusts. Although people are generally free to set the terms of trusts in any way they like, there is a growing body of legislation 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 Charities Act 2011.
R v Clarke, is court case decided by the High Court of Australia in the law of contract.
Pettitt v Pettitt [1970] AC 777 is a leading English trusts law case, concerning the presumption of advancement and a spouse's equitable interest in the matrimonial home.
Stone & Rolls Ltd v Moore Stephens[2009] UKHL 39 is a leading case relevant for UK company law and the law on fraud and ex turpi causa non oritur actio. The House of Lords decided by a majority of three to two that where the director and sole shareholder of a closely held private company deceived the auditors with fraud carried out on all creditors, subsequently the creditors of the insolvent company would be barred from suing the auditors for negligence from the shoes of the company. The Lords reasoned that where the company was only identifiable with one person, the fraud of that person would be attributable to the company, and the "company" could not rely on its own illegal fraud when bringing a claim for negligence against any auditors. It was the last case to be argued before the House of Lords.
Hussey v Palmer [1972] EWCA Civ 1 is an English trusts law case of the Court of Appeal. It concerned the equitable remedy of constructive trusts. It invokes the equitable maxim, "equity regards the substance and not the form."
Vandervell v Inland Revenue Commissioners [1967] 2 AC 291 is a leading English trusts law case, concerning resulting trusts. It demonstrates that the mere intention to not have a resulting trust does not make it so.
Re Vandervell Trustees Ltd [1974] EWCA Civ 7 is a leading English trusts law case, concerning resulting trusts.
Resulting trusts in English law are trusts created where property is not properly disposed of. It comes from the Latin resultare, meaning to spring back, and was defined by Megarry VC as "essentially a property concept; any property that a man does not effectually dispose of remains his own". These trusts come in two forms: automatic resulting trusts, and presumed resulting trusts. Automatic resulting trusts arise from a "gap" in the equitable title of property. The equitable maxim "equity abhors a vacuum" is followed: it is against principle for a piece of property to have no owner. As such, the courts assign the property to somebody in a resulting trust to avoid this becoming an issue. They occur in one of four situations: where there is no declaration of trust, where an express trust fails, where there is surplus property, or upon the dissolution of an unincorporated association. Rules differ depending on the situation and the type of original trust under dispute; failed charitable trusts, for example, have the property reapplied in a different way from other forms of trust.
Illegality in English law is a potential ground in English contract law, tort, trusts or UK company law for a court to refuse to enforce an obligation. The illegality of a transaction, either because of public policy under the common law, or because of legislation, potentially means no action directly concerning the deal will be heard by the courts. The doctrine is reminiscent of the Latin phrase "Ex turpi causa non oritur actio", meaning "no cause of action arises from a wrong". The primary problem arising when courts refuse to enforce an agreement is the extent to which an innocent party may recover any property already conveyed through the transaction. Hence, illegality raises important questions for English unjust enrichment law.
Bristol & West Building Society v Henning [1985] EWCA Civ 6 is an English land law case that holds a person can consent to give up the right to an overriding interest in land, that will bind third parties, such as banks, that purchase a property. Although dealing with unregistered land, it is equally applicable in the case of registered land and now falls under the Land Registration Act 2002.
Westdeutsche Landesbank Girozentrale v Islington LBC[1996] UKHL 12, [1996] AC 669 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.
Tribe v Tribe[1995] EWCA 20 is an English trusts law case, concerning resulting trusts, the presumption of advancement and illegality.
Halliburton Co. v. Erica P. John Fund, Inc., 573 U.S. 258 (2014), is a United States Supreme Court case regarding class action certification for a securities fraud claim. Under the fraud-on-the-market theory, the Court had to inquire as to if markets are economically efficient. The Court presumed they are.
Undue influence in English law is a field of contract law and property law whereby a transaction may be set aside if it was procured by the influence exerted by one person on another, such that the transaction cannot "fairly be treated the expression of [that person's] free will".
Patel v Mirza[2016] UKSC 42 is an English contract law case concerning the scope of the illegality principle relating to insider trading under section 52 of the Criminal Justice Act 1993. In 2020, the Supreme Court described this case as having set out a "a significant development in the law relating to illegality at common law".
