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| Electoral system in the United Kingdom | |
|---|---|
| Name | Electoral system in the United Kingdom |
| Caption | Palace of Westminster |
| Type | Mixed plurality and proportional systems |
| Established | 13th century (evolving) |
Electoral system in the United Kingdom describes the rules, institutions and practices that determine how public offices are filled across the United Kingdom, including representation in the House of Commons, devolved parliaments and assemblies such as the Scottish Parliament, the Senedd, and the Northern Ireland Assembly, as well as local authorities including London Boroughs and Metropolitan Boroughs. The system combines plurality, majoritarian and proportional elements shaped by statutes such as the Reform Act 1832, the Representation of the People Act 1918 and the Fixed-term Parliaments Act 2011 (repealed), overseen by bodies like the Electoral Commission and administered through institutions including Her Majesty's Courts of Justice for legal challenges.
The United Kingdom's franchise, boundaries and voting methods reflect centuries of change from the Model Parliament to modern statutes like the Representation of the People Act 1969, with eligibility and registration governed by the Electoral Registration Officer and contested in courts such as the Supreme Court of the United Kingdom. National elections to the House of Commons use single-member seats under first-past-the-post established by precedent and law, while devolved bodies adopt different systems, influenced by reports like the Hamilton Committee and commissions such as the Boundary Commission for England and Boundary Commission for Scotland. Regulatory oversight involves the Electoral Commission, the Information Commissioner's Office for data concerns, and oversight from Ministers in the Cabinet when legislation is required.
For House of Commons elections the system is first-past-the-post with single-member constituencies created by the Boundary Commission for Northern Ireland, the Boundary Commission for Wales, and the Boundary Commission for England, drawing on principles set out in statutes such as the Parliamentary Voting System and Constituencies Act 2011. The Scottish Parliament and Welsh Senedd use the additional member system combining constituencies and regional lists, influenced by recommendations from the Kilbrandon Commission and consensus at the Convention of the Scottish Assembly. The Northern Ireland Assembly uses the single transferable vote introduced following the Good Friday Agreement and implemented through Acts such as the Northern Ireland Act 1998. Local government elections can use first-past-the-post or single transferable vote in places like Scotland and Northern Ireland following legislation by the Local Government Boundary Commission for England. Referendums, including the 2016 United Kingdom European Union membership referendum, follow rules set by the Cabinet Office and guidance from the Electoral Commission.
Parliamentary general elections for the House of Commons determine the composition of the executive led by the Prime Minister and are distinct from elections to devolved legislatures like the Scottish Parliament election and the Senedd election. Local elections include contests for county councils, unitary authorities and parish councils with turnout and scheduling influenced by statutes such as the Local Government Act 1972. Police and crime commissioner elections were created by the Police Reform and Social Responsibility Act 2011 and have separate timetables. By-elections occur for individual vacancies following precedent from the Parliamentary Elections Act 1734 and modern rules administered by the Speaker of the House of Commons and returning officers such as the City of London Returning Officer.
Election administration is executed by returning officers, electoral registration officers and local authorities, coordinated with guidance from the Electoral Commission and legal frameworks like the Representation of the People Act 1983. Campaign finance and spending are regulated by the Political Parties, Elections and Referendums Act 2000 with oversight by the Electoral Commission and enforcement in courts such as the High Court of Justice. Postal voting and proxy arrangements are governed by regulations amended after incidents investigated by bodies including the National Audit Office. The conduct of poll staff and security is informed by the Cabinet Office and policing by forces like the Metropolitan Police Service.
Major parties including the Conservative Party (UK), the Labour Party (UK), the Liberal Democrats (UK), the Scottish National Party, and parties specific to Northern Ireland such as the Democratic Unionist Party and the Sinn Féin select candidates through internal mechanisms shaped by party rules, constituency associations, and statutes like the Political Parties, Elections and Referendums Act 2000. Candidate eligibility and disqualification draw on centuries-old provisions from laws such as the House of Commons Disqualification Act 1975 and precedents involving figures such as David Lloyd George and institutions like the Electoral Commission. Selection processes have been the subject of reform proposals from commissions like the McGregor-Smith Review and reviews by party chairs and parliamentary committees.
Debates over proportionality and local accountability have produced numerous reform campaigns including the Yes/No referendum on the Alternative Vote referendum, 2011, the People's Pledge motions, and proposals from the Hansard Society and the Law Commission. Parliamentary scrutiny via select committees such as the House of Commons Political and Constitutional Reform Committee and judicial review in the Supreme Court of the United Kingdom have influenced changes like boundary reviews and voter registration reforms initiated following reports by the Electoral Reform Society and the Institute for Government.
The UK system evolved from medieval assemblies such as the Magna Carta era into modern parliamentary democracy through landmark measures including the Reform Act 1832, the Representation of the People Act 1918, the Representation of the People Act 1928, and post-war reforms influenced by figures such as Winston Churchill and institutions like the Post Office in administering ballots. Devolution following the Scotland Act 1998 and the Government of Wales Act 1998 created alternate electoral systems in Edinburgh and Cardiff, while the Good Friday Agreement reshaped Northern Ireland's arrangements. Recent developments include the introduction of the Fixed-term Parliaments Act 2011 and its subsequent repeal, ongoing boundary reviews by the Boundary Commission for England, and referendums such as the 2016 United Kingdom European Union membership referendum that have left enduring political consequences.
Category:Elections in the United Kingdom