Nemo dat quod non habet, literally meaning "no one can give what they do not have", is a legal rule, sometimes called the nemo dat rule, that states that the purchase of a possession from someone who has no ownership right to it also denies the purchaser any ownership title. It is equivalent to the civil (continental) Nemo plus iuris ad alium transferre potest quam ipse habet rule, which means "one cannot transfer to another more rights than they have". The rule usually stays valid even if the purchaser does not know that the seller has no right to claim ownership of the object of the transaction ; however, in many cases, more than one innocent party is involved, making judgment difficult for courts and leading to numerous exceptions to the general rule that aim to give a degree of protection to bona fide purchasers and original owners. The possession of the good of title will be with the original owner.
Bell v Lever Brothers Ltd [1931] UKHL 2 is an English contract law case decided by the House of Lords. Within the field of mistake in English law, it holds that common mistake does not lead to a void contract unless the mistake is fundamental to the identity of the contract.
In contract law, a mistake is an erroneous belief, at contracting, that certain facts are true. It can be argued as a defense, and if raised successfully, can lead to the agreement in question being found void ab initio or voidable, or alternatively, an equitable remedy may be provided by the courts. Common law has identified three different types of mistake in contract: the 'unilateral mistake', the 'mutual mistake', and the 'common mistake'. The distinction between the 'common mistake' and the 'mutual mistake' is important.
Smith v Hughes (1871) LR 6 QB 597 is an English contract law case. In it, Blackburn J set out his classic statement of the objective interpretation of people's conduct when entering into a contract. The case regarded a mistake made by Mr. Hughes, a horse trainer, who bought a quantity of oats that were the same as a sample he had been shown. However, Hughes had misidentified the kind of oats: his horse could not eat them, and refused to pay for them. Smith, the oat supplier, sued for Hughes to complete the sale as agreed. The court sided with Smith, as he provided the oats Hughes agreed to buy. That Hughes made a mistake was his own fault, as he had not been misled by Smith. Since Smith had made no fault, there was no mutual mistake, and the sale contract was still valid.
The Sale of Goods Act 1979 is an Act of the Parliament of the United Kingdom which regulated English contract law and UK commercial law in respect of goods that are sold and bought. The Act consolidated the original Sale of Goods Act 1893 and subsequent legislation, which in turn had codified and consolidated the law. Since 1979, there have been numerous minor statutory amendments and additions to the 1979 act. It was replaced for some aspects of consumer contracts from 1 October 2015 by the Consumer Rights Act 2015 but remains the primary legislation underpinning business-to-business transactions involving selling or buying goods.
English contract law is the body of law that regulates legally binding agreements in England and Wales. With its roots in the lex mercatoria and the activism of the judiciary during the Industrial Revolution, it shares a heritage with countries across the Commonwealth, from membership in the European Union, continuing membership in Unidroit, and to a lesser extent the United States. Any agreement that is enforceable in court is a contract. A contract is a voluntary obligation, contrasting to the duty to not violate others rights in tort or unjust enrichment. English law places a high value on ensuring people have truly consented to the deals that bind them in court, so long as they comply with statutory and human rights.
The law of mistake comprises a group of separate rules in English contract law. If the law deems a mistake to be sufficiently grave, then a contract entered into on the grounds of the mistake may be void. A mistake is an incorrect understanding by one or more parties to a contract. There are essentially three types of mistakes in contract,
Morrisson v Robertson is a case establishing the common law principles that govern unilateral error in Scots law.
Carter v Boehm (1766) 3 Burr 1905 is a landmark English contract law case, in which Lord Mansfield established the duty of utmost good faith or uberrimae fidei in insurance contracts.
In English law, implied terms are default rules for contracts on points where the terms which contracting parties expressly choose are silent, or mandatory rules which operate to override terms that the parties may have themselves chosen. The purpose of implied terms is often to supplement a contractual agreement in the interest of making the deal effective for the purpose of business, to achieve fairness between the parties or to relieve hardship.
Unconscionability in English law is a field of contract law and the law of trusts, which precludes the enforcement of voluntary obligations unfairly exploiting the unequal power of the consenting parties. "Inequality of bargaining power" is another term used to express essentially the same idea for the same area of law, which can in turn be further broken down into cases on duress, undue influence and exploitation of weakness. In these cases, where someone's consent to a bargain was only procured through duress, out of undue influence or under severe external pressure that another person exploited, courts have felt it was unconscionable to enforce agreements. Any transfers of goods or money may be claimed back in restitution on the basis of unjust enrichment subject to certain defences.
Cundy v Lindsay (1877–78) LR 3 App Cas 459 is an English contract law case on the subject of mistake, introducing the concept that contracts could be automatically void for mistake as to identity, where it is of crucial importance. Some lawyers argue that such a rule is at odds with subsequent cases of mistake as to identity, such as Phillips v Brooks, where parties contracting face to face are merely voidable for fraud, protecting a third party buyer. However, the ultimate question is whether the identity of the other contracting party was crucial to the contract. The problem for the courts was essentially which of the two innocent parties should bear the loss of the goods.
Phillips v Brooks Ltd [1919] 2 KB 243 is an English contract law case concerning mistake. It held that a person is deemed to contract with the person in front of them unless they can substantially prove that they instead intended to deal with someone else.
Car and Universal Finance Co Ltd v Caldwell [1965] 1 QB 525 is an English contract law case concerning misrepresentation. It holds that an unequivocal act communicating the wish to rescind a contract can override third party rights. The communication does not need to go to the misrepresentor.
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.
Great Peace Shipping Ltd v Tsavliris (International) Ltd [2002] EWCA Civ 1407 is a case in English contract law which investigates when a common mistake within a contractual agreement will render it void.
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.
National Westminster Bank plc v Morgan[1985] UKHL 2 is a judicial decision of the House of Lords relating to English contract law and the doctrine of undue influence. The case is most well known for the comments of Lord Scarman about the supposed requirement of "manifest disadvantage" to set aside a contract for undue influence.
Solle v Butcher [1950] 1 KB 671 is an English contract law case, concerning the right to have a contract declared voidable in equity. Denning LJ reaffirmed a class of "equitable mistakes" in his judgment, which enabled a claimant to avoid a contract. Denning LJ said,
... a contract will be set aside if the mistake of the one party has been induced by a material misrepresentation of the other, even though it was not fraudulent or fundamental; or if one party, knowing that the other is mistaken about the terms of an offer, or the identity of the person by whom it is made, lets him remain under his delusion and concludes a contract on the mistaken terms instead of pointing out the mistake.... A contract is also liable in equity to be set aside if the parties were under a common misapprehension either as to facts or as to their relative and respective rights, provided that the misapprehension was fundamental and that the party seeking to set it aside was not himself at fault.
Lewis v Averay [1972] 1 QB 198 is a case in English contract law on fraudulent misrepresentation or "mistake" about identity.
