The United Kingdom has four legal systems, each of which derives from a particular geographical area for a variety of historical reasons: English and Welsh law, Scots law, Northern Ireland law, and, since 2007, purely Welsh law, as a result of the passage of Welsh devolution and the Government of Wales Act 2006 by Parliament. There have been multiple calls from both Welsh academics and politicians however for a Wales criminal justice system.
Whilst the House of Lords of the United Kingdom is the upper chamber of Parliament and has government ministers, for many centuries it had a judicial function. It functioned as a court of first instance for the trials of peers and for impeachments, and as a court of last resort in the United Kingdom and prior, the Kingdom of Great Britain and the Kingdom of England.
The courts of England and Wales, supported administratively by His Majesty's Courts and Tribunals Service, are the civil and criminal courts responsible for the administration of justice in England and Wales.
The Court of Session is the supreme civil court of Scotland and constitutes part of the College of Justice; the supreme criminal court of Scotland is the High Court of Justiciary. The Court of Session sits in Parliament House in Edinburgh and is both a trial court and a court of appeal. Decisions of the court can be appealed to the Supreme Court of the United Kingdom, with the permission of either the Inner House or the Supreme Court. The Court of Session and the local sheriff courts of Scotland have concurrent jurisdiction for all cases with a monetary value in excess of £100,000; the plaintiff is given first choice of court. However, the majority of complex, important, or high value cases are brought in the Court of Session. Cases can be remitted to the Court of Session from the sheriff courts, including the Sheriff Personal Injury Court, at the request of the presiding sheriff. Legal aid, administered by the Scottish Legal Aid Board, is available to persons with little disposable income for cases in the Court of Session.
The High Court of Justiciary is the supreme criminal court in Scotland. The High Court is both a trial court and a court of appeal. As a trial court, the High Court sits on circuit at Parliament House or in the adjacent former Sheriff Court building in the Old Town in Edinburgh, or in dedicated buildings in Glasgow and Aberdeen. The High Court sometimes sits in various smaller towns in Scotland, where it uses the local sheriff court building. As an appeal court, the High Court sits only in Edinburgh. On one occasion the High Court of Justiciary sat outside Scotland, at Zeist in the Netherlands during the Pan Am Flight 103 bombing trial, as the Scottish Court in the Netherlands. At Zeist the High Court sat both as a trial court, and an appeal court for the initial appeal by Abdelbaset al-Megrahi.
The Constitutional Reform Act 2005 is an Act of the Parliament of the United Kingdom, relevant to UK constitutional law. It provides for a Supreme Court of the United Kingdom to take over the previous appellate jurisdiction of the Law Lords as well as some powers of the Judicial Committee of the Privy Council, and removed the functions of Speaker of the House of Lords and Head of the Judiciary of England and Wales from the office of Lord Chancellor.
The courts of Scotland are responsible for administration of justice in Scotland, under statutory, common law and equitable provisions within Scots law. The courts are presided over by the judiciary of Scotland, who are the various judicial office holders responsible for issuing judgments, ensuring fair trials, and deciding on sentencing. The Court of Session is the supreme civil court of Scotland, subject to appeals to the Supreme Court of the United Kingdom, and the High Court of Justiciary is the supreme criminal court, which is only subject to the authority of the Supreme Court of the United Kingdom on devolution issues and human rights compatibility issues.
The Supreme Court of the United Kingdom is the final court of appeal in the United Kingdom for all civil cases, and for criminal cases originating in England, Wales and Northern Ireland. As the United Kingdom’s highest appellate court for these matters, it hears cases of the greatest public or constitutional importance affecting the whole population.
The courts of Northern Ireland are the civil and criminal courts responsible for the administration of justice in Northern Ireland: they are constituted and governed by the law of Northern Ireland.
The Inner House is the senior part of the Court of Session, the supreme civil court in Scotland; the Outer House forms the junior part of the Court of Session. It is a court of appeal and a court of first instance. The chief justice is the Lord President, with their deputy being the Lord Justice Clerk, and judges of the Inner House are styled Senators of the College of Justice or Lords of Council and Session. Criminal appeals in Scotland are handled by the High Court of Justiciary sitting as the Court of Appeal.
The Judicial Appointments Commission (JAC) is an independent commission that selects candidates for judicial office in courts and tribunals in England and Wales and for some tribunals whose jurisdiction extends to Scotland or Northern Ireland.
There are various levels of judiciary in England and Wales—different types of courts have different styles of judges. They also form a strict hierarchy of importance, in line with the order of the courts in which they sit, so that judges of the Court of Appeal of England and Wales are generally given more weight than district judges sitting in county courts and magistrates' courts. On 1 April 2020 there were 3,174 judges in post in England and Wales. Some judges with United Kingdom-wide jurisdiction also sit in England and Wales, particularly Justices of the United Kingdom Supreme Court and members of the tribunals judiciary.
A supreme court is the highest court within the hierarchy of courts in most legal jurisdictions. Other descriptions for such courts include court of last resort, apex court, and highcourt of appeal. Broadly speaking, the decisions of a supreme court are not subject to further review by any other court. Supreme courts typically function primarily as appellate courts, hearing appeals from decisions of lower trial courts, or from intermediate-level appellate courts.
The Ministry of Justice (MoJ) is a ministerial department of His Majesty's Government headed by the Secretary of State for Justice and Lord Chancellor. Its stated priorities are to reduce re-offending and protect the public, to provide access to justice, to increase confidence in the justice system, and uphold people's civil liberties. The Secretary of State is the minister responsible to Parliament for the judiciary, the court system and prisons and probation in England and Wales, with some additional UK-wide responsibilities e.g. the UK Supreme Court and judicial appointments by the Crown. The department is also responsible for areas of constitutional policy not transferred in 2010 to the Deputy Prime Minister, human rights law and information rights law across the UK.
The President of the Supreme Court of the United Kingdom is equivalent to the now-defunct position of Senior Lord of Appeal in Ordinary, also known as the Senior Law Lord, who was the highest ranking among the Lords of Appeal in Ordinary. The President is not the most senior judge of the judiciary in England and Wales; that position belongs to the Lord Chief Justice. The current President is Robert Reed, since 13 January 2020.
The tribunal system of the United Kingdom is part of the national system of administrative justice with tribunals classed as non-departmental public bodies (NDPBs).
The constitution of the United Kingdom or British constitution comprises the written and unwritten arrangements that establish the United Kingdom of Great Britain and Northern Ireland as a political body. Unlike in most countries, no attempt has been made to codify such arrangements into a single document, thus it is known as an uncodified constitution. This enables the constitution to be easily changed as no provisions are formally entrenched; the Supreme Court of the United Kingdom recognises that there are constitutional principles, including parliamentary sovereignty, the rule of law, democracy, and upholding international law.
The Judges' Council is a body in England and Wales that, representing the judiciary, advises the Lord Chief Justice on judicial matters. It has its historical roots in the original Council of the Judges of the Supreme Court, created by the Judicature Act 1873 to oversee the new Supreme Court of Judicature. This body initially met regularly, reforming the procedure used by the circuit courts, and the new High Court of Justice but met less regularly as time went on, meeting only twice between 1900 and 1907, with a gap of ten years between meetings in 1940 and 1950 respectively. After relative inactivity, it was eventually wound up through the Supreme Court Act 1981, which contained no provisions for its continued existence, something Denis Dobson attributes to newer bodies which performed the duties the Council had originally been created to do.
Justices of the Supreme Court of the United Kingdom are the judges of the Supreme Court of the United Kingdom other than the president and the deputy president. The Supreme Court is the highest court of the United Kingdom for civil and criminal matters in the jurisdictions of England and Wales and Northern Ireland. Judges are appointed by the King on the advice of the Prime Minister, who receives recommendations from a selection commission.
Scots law is the legal system of Scotland. It is a hybrid or mixed legal system containing civil law and common law elements, that traces its roots to a number of different historical sources. Together with English law and Northern Ireland law, it is one of the three legal systems of the United Kingdom.
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