Exclusive: Adrian Fulford will also examine wider national security vetting system after Foreign Office controversy
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A retired high court judge is expected to review Peter Mandelson’s vetting process and the wider national security vetting system.
The review, commissioned by Downing Street, comes after a Guardian investigation revealing that security officials decided Mandelson should not receive developed vetting clearance, but were overruled by the Foreign Office to allow him to become US ambassador.
The disclosure on Thursday led to the resignation of Olly Robbins, the top official in the Foreign Office, and increased pressure on Keir Starmer, amid claims from the prime minister and other Cabinet colleagues that no ministers were aware Mandelson had failed vetting.












