Complaining about UK Government departments or public bodies in England
How to take complaints about UK Government departments and other public organisations to the Public Service Ombudsman
This list notes when an MP has changed allegiance from one political party to another or decided to sit as an independent Member. Instances of MPs losing or resigning a party whip are also noted.
MPs' changes of party allegiance in the House of Commons since 1979 (110KB Excel spreadsheet, XLSX)
No. By-elections are not automatically triggered if an MP changes their party affiliation although an MP may choose to stand down and fight the ensuing by-election under a new party label or as an independent MP.
Information on the role of the government and opposition whips in the management of parliamentary business can be found in the Commons Library briefing on the Whips’ Office.
This series of publications contains data on various subjects relating to Parliament and government. Topics include legislation, MPs, select committees, debates, divisions and Parliamentary procedure.
Due to the difficulties in compiling a comprehensive list of all floor-crossings, whip withdrawals and whip resignations, this list cannot be guaranteed to be definitive.
We are always happy to hear of any additions or amendments to the list. Please email papers@parliament.uk with any comments.
MPs' changes of party allegiance in the House of Commons since 1979 (110KB Excel spreadsheet, XLSX)
How to take complaints about UK Government departments and other public organisations to the Public Service Ombudsman
Some groups are more politically engaged than others. The government has proposed policies to improve engagement, including lowering the voting age to 16.
A briefing paper which "maps" (or summarises) the main elements of the United Kingdom's uncodified constitution.