asked Her Majesty's Government:

How many (a) central government staff; (b) local government staff; (c) police officers; and (d) parliamentary staff have been re-vetted by the security services since September 2001, broken down by ethnic origin.[HL7257]

Individual government organisations are responsible for carrying out national security vetting and for granting clearances when the necessary criteria are met. Information is not collected centrally on numbers in each of the categories specified or by ethnic origin for the period in question.