There is no internal censorship of letters in England or Wales, apart from occasional cases in which letters posted in a particular area are selected for examination as an operational security measure. It would not be in the public interest to disclose the instructions issued on such occasions.
Is the right hon. Gentleman aware that there is a section of the public which believes that this machinery is used for the suppression of criticism of Ministers and of the Government in general? Will he not agree that that would be an improper use of the machinery in question?