Southport inquiry chair to review Peter Mandelson vetting process

Sir Adrian Fulford has recently chaired the inquiry into the Southport attacks. Photograph: Peter Byrne/PA

A retired court of appeal 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.