I refer the hon. Member to the answers given by the former Prime Minister to the hon. Members for Hemel Hempstead (Mike Penning) and Meriden (Mrs. Spelman) on 2 December 2005, Official Report, column 816W, and to the hon. Member for North-East Hertfordshire (Mr. Heald) on 15 January 2007, Official Report, column 789W.