The Chairman pointed out that the value of the proposals would be increased if it were made compulsory for everyone to carry his or her identity card, and Mr. Wells said that in connection with the re-issue of National Registration Identity Cards in certain areas the Home Office were considering whether such a requirement was practicable throughout the country. Air Commodore Blackford said that, even under the existing arrangements, however, he thought the scheme would be of value to the R.A.F., and Mr.