The Zircon affair was an incident in 1986 that raised many important issues in the British constitution.

During the winter of 1985/1986, journalist Duncan Campbell was commissioned by the BBC to make a TV documentary in its Secret Society strand. Campbell had unearthed some details an a secret spy-satellite project, code name Zircon, that had escaped the statutory financial scrutiny of the Public Accounts Committee . Over the Winter, the BBC became increasingly concerned and nervous about the programme's content and approached the government for advice. The government demanded that the programme be shelved, on the grounds of national security, and the BBC complied.

However, Campbell then wrote an article giving his account of the episode in the New Statesman magazine, just evading an injunction to prevent its publication. The matter now becoming public knowledge, opposition MP Robin Cook managed to obtain a video of the abandoned documentary and arranged a showing of it to MPs in the House of Commons. The Attorney General, Sir Nigel Havers, sought an injunction in the High Court to prevent the video's showing but the application was dismissed on the basis of parliamentary privilege.

Frustrated, the Attorney General organised a briefing on the matter for the Speaker of the House of Commons, based on confidentiality steming from their common membership of the Privy Council. That day, the Speaker ruled that no part of the Palace of Westminster was to be used for the showing of the video, pending a report by the Committee of Privileges. There was much political consternation at the ruling.

However, by this time, copies of the video had been obtained by various civil liberties organisations who had arranged public showings around the UK. The government were now placed in a difficult situation. The showings would be in clear violation of the Official Secrets Acts but prosecution under the acts is only possible with the permission of the Attorney General and there was a danger of an escalating political crisis. The Attorney General stayed his hand and the matter soon faded in the public interest.

The Committee of Privileges subsequently recommended that showing the video would fall outside proceedings in parliament and was, therefore, not protected by privilege. They further recommended that the Speaker's actions had been wholly proper.

Bibliography

• Bradley, A.W. (1987) “Parliamentary privilege and the Zircon affair”, Public Law, Spring, pp1-3
• - (1987) “Parliamentary privilege, Zircon and national security” Public Law, Winter, pp488-495
• Milne, A. (1989) D.G.: Memoirs of a British Broadcaster ISBN 0340497505