Sue Gray, a senior civil servant in the United Kingdom, publishes an initial version of her report on the Downing Street Partygate controversy.

Susan Ann Gray, Baroness Gray of Tottenham, is a British special adviser and former civil servant who served as Downing Street Chief of Staff under Prime Minister Keir Starmer from July to October 2024, having previously served under Starmer as Chief of Staff to the Leader of the Opposition from 2023 to 2024.

In the United Kingdom, the Civil Service is the permanent bureaucracy or secretariat of Crown employees that supports His Majesty's Government, the Scottish Government and the Welsh Government, which is led by a cabinet of ministers chosen by the Prime Minister of the United Kingdom of Great Britain and Northern Ireland.

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The UK includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of the smaller islands within the British Isles, covering 94,354 square miles (244,376 km²). Northern Ireland shares a land border with the Republic of Ireland; otherwise, the UK is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. It maintains sovereignty over the British Overseas Territories, which are located across various oceans and seas globally. The UK had an estimated population of over 68.2 million people in 2023. The capital and largest city of both England and the UK is London. The cities of Edinburgh, Cardiff and Belfast are the national capitals of Scotland, Wales and Northern Ireland respectively.

Downing Street is a gated street in Westminster in London that houses the official residences and offices of the Prime Minister of the United Kingdom and the Chancellor of the Exchequer. In a cul-de-sac situated off Whitehall, it is 200 metres (660 ft) long, and a few minutes' walk from the Houses of Parliament. Downing Street was built in the 1680s by Sir George Downing.