asked the Secretary of State for the Home Department what is the estimated capacity of fall-out shelters in Great Britain (a) in square metres and (b) in numbers of human beings.

As any solid building will give a measure of protection against fall-out, it is not possible to answer the question in the terms sought by the hon. Member.

asked the Secretary of State for the Home Department whether he intends to instruct local authorities to distribute leaflets advising procedure to be adopted in case of nuclear attack.

Some local authorities have done this in response to requests in their area for guidance on what a householder might usefully do should nuclear war threaten. The whole question of information to the public in this field forms part of my present review of home defence arrangements.