"These essays on the Supreme Court's decision in Patel v Mirza (2016), which has revolutionised the law on illegality by replacing the previous "rule-based" approach by a "factors-based" one, were first presented at a conference in May 2017."

In Patel v Mirza [2016] UKSC 42, nine justices of the Supreme Court of England and Wales decided in favour of a restitutionary award in response to an unjust enrichment, despite the illegal transaction on which that enrichment was based. Whilst the result was reached unanimously, the reasoning could be said to have divided the Court. Lord Toulson, Lady Hale, Lord Kerr, Lord Wilson, Lord Hodge and Lord Neuberger favoured a discretionary approach, but their mode of reasoning was described as 'revolutionary' by Lord Sumption (at [261]), who outlined in contrast a more rule-based means of dealing with the issue; a method with which Lord Mance and Lord Clarke broadly agreed. The decision is detailed and complex, and its implications for several areas of the law are considerable. Significantly, the reliance principle from Tinsley v Milligan [1994] 1 AC 340 has been discarded, as has the rule in Parkinson v College of Ambulance Ltd [1925] KB 1. Patel v Mirza, therefore, can fairly be described as one of the most important judgments in general private law for a generation, and it can be expected to have ramifications for the application of the illegality doctrine across a wide range of disciplinary areas. Unless there is legislative intervention, which does not seem likely at the present time, Patel v Mirza is set to be of enduring significance. This collection will provide a crucial set of theoretical and practical perspectives on the illegality defence in English private law. All of the authors are well established in their respective fields. The timing of the book means that it will be unusually well placed as the 'go to' work on this subject, for legal practitioners and for scholars.

Freedom of contract is a great strength of English law: indeed it is a key reason why English law is often the law of choice. But the terms of commercial contracts often restrict freedom of action. This book considers such terms. Leading commentators take stock of recent developments such as increased reliance on good faith/discretion and the rise of smart contracts. Insodoing, they make original contributions to ongoing debates concerning the limits to parties' freedom of contract. This important subject will interest drafters of commercial contracts keen to ensure that contracts are clear and enforceable; litigators disputing the meaning, scope and validity of terms; and academics interested in the purpose and nature of the exercises involved.

"Although it is often referred to as "the third branch of private law", alongside contract and tort, the law of unjust enrichment and restitution is not well understood. That is true for a variety of reasons. The subject is seldom taught in law school. Many of the traditional cases speak in a language that is incomprehensible to modern ears. Most significantly, until now, there has not been a text that is structured in accordance with the modern Canadian principle of unjust enrichment.

Tort law and criminal law are closely bound together but their relationship rarely receives sustained and rigorous scrutiny. This is the first significant project in England and Wales to address that shortcoming. Building on growing interest amongst both academics and practitioners in the relationship between tort and crime, it draws together leading experts to chart the field and explore key points of interest. It uses a range of perspectives from legal theory, doctrine, legal history and comparative law to address some of the most important and interesting links between tort and crime. Examples include how the illegality defence operates to avoid stultification of the law, the difference between criminal and civil causation, how the Motor Insurers' Bureau not only insures but acts to enforce laws and alter behaviour, and why civil law only very rarely restores specific property but the criminal law does it daily.

A unique comparative analysis of Chinese contract law accessible to lawyers from civil, common, and mixed law jurisdictions.