The Conservative MP Alun Cairns has asked the Metropolitan Police to investigate the former Labour spin doctor Damian McBride, to see if he leaked documents in violation of the Official Secrets Act.
Mr Cairns told the head of the Met Sir Bernard Hogan How that he is "deeply concerned serious offences may have been committed".
His fellow Tory MP Henry Smith has written to the Whitehall watchdog to see if Mr McBride broke any rules of the civil service when in his handling of sensitive documents while working for the Treasury.
Mr McBride's account of his actions clearly shows that his behaviour directly contradicted the Civil Service values of integrity, honesty and impartiality.
It is clear...that Mr McBride broke the Code on numerous occasions, briefing out confidential government documents and briefing against other members of the government.
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