This report provides a detailed overview of the law and legal system in England and Wales. It begins by outlining different types of law, including constitutional, corporate, criminal, employment, commercial, and contract law. The report then delves into the main principles of criminal law, such as the presumption of innocence, burden of proof, right to remain silent, and double jeopardy. It further explores the structure of magistrate and crown courts, including their roles and appeal routes within the criminal court structure. The report also examines the roles and responsibilities of various public services and organizations involved in the criminal justice process, and discusses how the effectiveness of the criminal justice process can be measured using performance data. The report concludes with a summary of the key findings and references relevant sources.