Leaked Memos Reveal GCHQ Efforts to Keep Mass Surveillance Secret

The UK intelligence agency GCHQ has repeatedly warned it fears a “damaging public debate” on the scale of its activities because it could lead to legal challenges against its mass-surveillance programs, classified internal documents reveal.

Memos contained in the cache disclosed by the US whistleblower Edward Snowden detail the agency’s long fight against making intercept evidence admissible as evidence in criminal trials – a policy supported by all three major political parties, but ultimately defeated by the UK’s intelligence community.

Foremost among the reasons was a desire to minimize the potential for challenges against the agency’s large-scale interception programs, rather than any intrinsic threat to security, the documents show.

The papers also reveal that:

The most recent attempt to make intelligence gathered from intercepts admissible in court, proposed by the last Labour government, was finally stymied by GCHQ, MI5 and MI6 in 2009.

A briefing memo prepared for the board of GCHQ shortly before the decision was made public revealed that one reason the agency was keen to quash the proposals was the fear that even passing references to its wide-reaching surveillance powers could start a “damaging” public debate.

Referring to the decision to publish the report on intercept as evidence without classification, it noted: “Our main concern is that references to agency practices (i.e. the scale of interception and deletion) could lead to damaging public debate which might lead to legal challenges against the current regime.”

A later update, dated May 2012, set out further perceived “risks” of making intercepts admissible, including “the damage to partner relationships if sensitive information were accidentally released in open court”. It also noted that the “scale of interception and retention required would be fairly likely to be challenged on Article 8 (Right to Privacy) grounds”.

The GCHQ briefings showed the agency provided the Home Office with support in winning the PR battle on the proposed reforms by lining up people to talk to the media – including Lord Carlile, who on Wednesday gave a public lecture condemning the Guardian’s decision to publish stories based on the leaked material from Snowden.

Referring to the public debate on intercept evidence, the document notes: “Sir Ken McDonald [sic] (former DPP [director of public prosecutions]), Lord Goldsmith (former AG [attorney general]) and David Davis (former Shadow HSec [Home Secretary) [have been] reiterating their previous calls for IaE [intercept as evidence].

“We are working closely with HO [Home Office] on their plans for press handling when the final report is published, e.g. lining up talking heads (such as Lord Carlisle [sic], Lord Stevens, Sir Stephen Lander, Sir Swinton Thomas).”

Carlile was the independent reviewer of terrorism legislation in 2001-11, and was awarded a CBE in 2012 for his services to national security.

Another top GCHQ priority in resisting the admission of intercepts as evidence was keeping secret the extent of the agency’s co-operative relationships with telephone companies – including being granted access to communications networks overseas.

In June, the Guardian disclosed the existence of GCHQ’s Tempora internet surveillance program. It uses intercepts on the fiber-optic cables that make up the backbone of the internet to gain access to swaths of internet users’ personal data. The intercepts are placed in the UK and overseas, with the knowledge of companies owning either the cables or landing stations.

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