§ Viscount Castlereagh
asked the Minister of Information whether he is aware that letters addressed to Northern Ireland enclosed in used envelopes are returned to the sender by the censor; and what is the reason for this, in view of the Government's policy of strict economy in the use of paper?
§ Mr. Thurtle
Yes, Sir. If used envelopes were not forbidden it would require a large number of extra examiners to ensure that messages are not concealed underneath the gummed labels. The prohibition is contained in the Control of Communications Order (No. 1), 1941, dated 18th March, 1941.