After Keir Starmer announced Peter Mandelson as his pick to be ambassador to the US in December 2024, officials in the Foreign Office contacted him to organise the security vetting clearance process.
As with almost all of the 8,000 officials working in the Foreign Office’s Whitehall headquarters, Mandelson required a level of clearance known as developed vetting(DV). This is necessary for individuals in roles that require frequent and uncontrolled access to material marked top secret.
