§ Mr. Dalyell
asked the Prime Minister on how many occasions in the last 20 years a Prime Minister's principal private secretary's next appointment has been as a permanent secretary of a Government Department.
§ The Prime Minister
There have been seven principal private secretaries to the Prime Minister since 1962, not counting the present incumbent. Four of them have or will subsequently become permanent secretaries, after intervals of seven years, two years, four months and four months respectively after leaving 10 Downing Street.