Question to the Cabinet Office:

To ask His Majesty's Government, in regard to Part of a Return to an Address of the Honourable the House of Commons dated 4 February 2026 relating to the appointment of Lord Mandelson as HM Ambassador to Washington, published on 11 March (HC1774-1), what role (1) the Cabinet Office legal advisers, (2) the National Security Adviser, and (3) deputy national security advisers, had a role in the redaction of material on national security grounds.

The Government does not comment on the details of any internal redaction processes, as the methodology applied will vary depending on the nature and sensitivity of the material in question.

In accordance with the exceptional procedures agreed for the Humble Address, dated 4 February 2026 relating to Peter Mandelson, the Intelligence and Security Committee of Parliament (ISC) will make a final decision on redactions following the Government’s request.