Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. This introductory chapter provides an overview of the English legal system (ELS). The study of ELS involves the study of the legal system of both England and Wales; Scotland and Northern Ireland are subject to a separate, yet connected legal system. These four countries are subjected to the laws of the UK; however, each individual constituent has devolved powers allowing them to legislate in particular areas. Where a conflict between laws of the UK and laws of the constituent country arises, the UK law takes precedence. The effect of devolution from the UK to Scotland, Wales, and Northern Ireland does not affect this parliamentary supremacy. Indeed, it has been argued for some time that devolution of power has not gone far enough in allowing Scotland or Northern Ireland to govern themselves.