Page "Campaign for Nuclear Disarmament" Paragraph 54

In 1985, Cathy Massiter, an MI5 officer who had been responsible for the surveillance of CND from 1981 to 1983, resigned and made disclosures to a Channel 4 20 / 20 Vision programme, " MI5's Official Secrets ".

She said that her work was determined more by the political importance of CND than by any security threat posed by subversive elements within it.

In 1983, she analysed telephone intercepts on John Cox that gave her access to conversations with Joan Ruddock and Bruce Kent.

MI5 also placed a spy, Harry Newton, in the CND office.

According to Massiter, Newton believed that CND was controlled by extreme left-wing activists and that Bruce Kent might be a crypto-communist, but Massiter found no evidence to support either opinion.

On the basis of Ruddock's contacts, MI5 suspected her of being a communist sympathiser.

Speaking in the House of Commons, Dale Campbell-Savours, MP, said,