What is ‘DV’? Key terms used in the Mandelson vetting row explained
Peter Mandelson's security vetting controversy has brought attention to key terms used in the UK's national security processes. His application for developed vetting (DV) was denied, leading to his dismissal as ambassador to the US. The article explains the vetting process and the role of the United Kingdom Security Vetting (UKSV) agency in assessing applicants.
- ▪Peter Mandelson was sacked as the ambassador to the US after failing his security vetting.
- ▪Developed vetting (DV) is required for officials with access to top secret material and involves intrusive interviews.
- ▪The United Kingdom Security Vetting (UKSV) agency conducts vetting for civil servants, while politicians are not subjected to the same process.
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Peter Mandelson was sacked as the ambassador to the US in September last year. Photograph: Kin Cheung/APView image in fullscreenPeter Mandelson was sacked as the ambassador to the US in September last year. Photograph: Kin Cheung/APPeter MandelsonExplainerWhat is ‘DV’? Key terms used in the Mandelson vetting row explainedPhrases used by the UK’s national security apparatus have been thrown into the spotlight by the political controversy UK politics live – latest updates Henry Dyer and Jamie GriersonTue 28 Apr 2026 04.48 EDTFirst published on Mon 20 Apr 2026 09.15 EDTSharePrefer the Guardian on GoogleThe story of how Peter Mandelson failed his UK security vetting before he took up his post as ambassador to the US – and the overturning of the decision that he should not be given clearance –…
Excerpt limited to ~120 words for fair-use compliance. The full article is at The Guardian — World.
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