23 May 2025
1. What Is the DSMA Security Committee?
The DSMA (Defence and Security Media Advisory) Committee is a quiet yet powerful institution within the British establishment. Its primary role is to regulate what information relating to national security is released through the media. Though little discussed in public, its existence sits at the heart of Britain’s unique system of soft censorship, a voluntary pact between the state and the press.
2. A Voluntary but Potent System
The Committee’s workings are based on cooperation rather than law. It does not enforce rules by court order or statute. Instead, it relies on mutual understanding and respect between media editors and state officials. This understanding is formalised through DSMA Notices - formerly known as D-Notices. These are official communications sent to news editors requesting that certain information not be published, especially if it relates to military operations, intelligence activities, or the security services.
3. Who Sits on the Committee?
The DSMA Committee is chaired by a senior civil servant from the Ministry of Defence and includes representatives from MI5, MI6, GCHQ, the Cabinet Office, and the editors of major British newspapers and broadcasters. Its meetings are confidential. It reports to the Cabinet Secretary and operates from within the heart of Whitehall. Despite its discreet profile, its influence is substantial.
4. The Power of the DSMA Notice
DSMA Notices are not legally binding - but they are almost always respected. Editors will rarely defy them. Over the years, these notices have been used to restrict reporting on everything from the activities of special forces in the Middle East to intelligence operations in Russia and cyber campaigns against Iran. The system depends on trust: editors are shown classified material on the understanding that they will not publish it.
5. Critics and Defenders
Critics argue the system amounts to a form of self-censorship, with national security used as a convenient pretext to withhold politically embarrassing information. Others point out that, in an age of social media and decentralised information, the DSMA system is quaint and outdated. Defenders, however, maintain that it is a civilised arrangement - one that balances press freedom with the need to protect lives and operations.
This is not the only way controlling the MSM output of course.
6. Recent Controversies and Questions
The DSMA Committee came under quiet scrutiny in late 2023 when rumours emerged about its involvement in suppressing details of British military support to Israel in Gaza and Lebanon. While mainstream media said little, alternative channels claimed a DSMA Notice had been issued. Yet, curiously, in other sensitive cases - such as recent criminal allegations involving high-profile figures - the same machinery appears silent. Why some stories are silenced while others leak freely remains a matter of speculation.
7. A Final Thought
The British way of handling state secrets relies not on compulsion, but on discretion. The DSMA Committee is both a symbol of that tradition and a reminder of its risks. In a free society, any system that restrains the flow of information must be watched carefully - even, or especially, if it operates without visible force.