HC Deb 08 March 1966 vol 725 c483W
Q20. Mr. Cooper

asked the Prime Minister what security arrangements are made in respect of access to classified information in regard to persons who have accommodation within the premises at No. 10 Downing Street, but are not in any public employment.

The Prime Minister

Exactly the same security rules and procedures are applied to all who work in 10, Downing Street.