HC Deb 12 July 1979 vol 970 c251W
Mr. Cryer

asked the Secretary of State for the Home Department if he will end the use of secret codes on passports by immigration officers; whether such a code was officially authorised; and if he will make a statement.

Mr. Whitelaw

The endorsements used in passports by immigration officers are valuable in preventing evasion of the control, and I have no intention of ending their use.