No court may require a person to disclose, nor is any person guilty of contempt of court for refusing to disclose, the source of information contained in a publication for which he is responsible, unless it be established to the satisfaction of the court that disclosure is necessary in the interests of justice or national security or for the prevention of disorder or crime.
Lord Scarman, speaking during the House of Lords report stage of the Contempt of Court Bill, stated that the relevant provision would “ameliorate the law relating to contempt of court so that the public right to be informed is not impeded or obstructed.” Similarly, Lord Morris, speaking in support of the same clause of the Bill, noted that it “creates a privilege in aid of truth, a privilege in aid of the public interest, a vital and essential privilege, particularly when one bears in mind the ever-encroaching power, whether direct or indirect, of the Executive over the well-being or otherwise of the taxpayer and voter.”