The question, of course, is to what extent communications by MPs is privileged. In fact in 1957/8 there was a case in which the LEB threatened a writ against an MP because of a letter he had written to a Minister. This was raised in the house to be referred to the Privileges committee The committee considered the issue and on October 30, 1957 concluded that "(a) In writing the letter of February 8, 1957, to the Paymaster-General of which the London Electricity Board complain, Mr. Strauss was engaged in 'a proceeding in parliament within the meaning of the Bill of Rights 1688. "(b) The London Electricity Board in threatening by the letters from themselves and their solicitors to commence proceedings for libel against Mr. Strauss for statements made by him in the course of a proceeding in Parliament are threatening to impeach or question the freedom of Mr. Strauss in a Court or place outside Parliament, and accordingly the London Electricity Board and their solicitors hav...