Question to the Cabinet Office:

To ask the Minister for the Cabinet Office, how many people working (a) at No. 10 Downing Street and (b) on the Prime Minister's staff since May 2010 have not been required to undergo security vetting; how many such staff have undergone security vetting; and what the job titles and responsibilities are of all such staff.

Attendance at internal meetings is not normally disclosed.

It has been the policy of successive governments not to comment about staff subject to national security vetting.