Andy Coulson did not face the rigorous government security checks into his background that most recent Downing Street press chiefs have undergone, it emerged on Wednesday.
The former News of the World editor was granted only mid-level security clearance when he was appointed by David Cameron as his director of communications, so avoiding "developed vetting" involving a detailed interview by government investigators looking for anything in his past that could compromise him.
The checks would have involved a review of his personal finances and cross-examination by investigators of referees, who could include friends and family. Coulson would have been asked by government vetters, some of whom are former police officers, such questions as: "Is there anything else in your life you think it appropriate for us to know?"
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The Cabinet Office denied that Coulson was spared high-level security vetting to avoid any potentially embarrassing information coming out which could have compromised his appointment.
link:
http://www.guardian.co.uk/media/2011/jul/20/andy-coulson-security-clearance-checks