MI5 found to have lied to courts over neo‑Nazi informant, watchdog warns

What happened: A 10‑month investigation by Sir John Goldring, deputy investigatory powers commissioner, concluded MI5 gave false evidence to three courts by denying departures from its “neither confirm nor deny” (NCND) policy about Agent X, a foreign neo‑Nazi informant accused of serious abuse. Where and when: The findings follow legal battles and inquiries between 2022 and 2025 and are set out in a report published after a prime ministerial order in September. Who disclosed it and the result: Sir John’s report names senior officers who lied or misled colleagues and says MI5’s failures led to judges being given incorrect sworn statements, prompting apologies from MI5 leadership and potential legal consequences.

Chronology and official detail: In 2020 MI5 officers made calls that revealed Agent X’s status to a BBC journalist, contradicting the service’s court submissions that NCND had been preserved. The BBC published details in February 2025. Internal reviews initially cleared MI5, but in July 2025 senior high court judges found those reviews procedurally flawed. Sir John’s subsequent probe identified specific falsehoods and systemic failures across MI5’s handling of the case.

Key individual findings: Officer 2, a senior communications figure, is described as repeatedly untruthful and as having provided the false foundation of MI5’s account. Officer 3, who later handled communications, misrepresented Officer 2’s statements and is held responsible for perpetuating the false narrative. A deputy director referred to as Witness A overstated his knowledge in legal meetings and contributed to misleading court statements.

Impact on the abused partner and legal process: Victim known as Beth was denied access to crucial evidence because courts accepted MI5’s sworn claims that NCND had not been broken. That secrecy limited her ability to challenge MI5’s actions and may have affected legal outcomes. Beth and civil liberties advocates say the case raises questions about institutional accountability where state power intersects with gendered violence.

Wider institutional failures: The report documents that MI5 colleagues and external agencies, including MI6 and a foreign service, were told NCND had been departed from, yet MI5 persisted in denying this to the courts. Sir John found missed opportunities to correct the record and described “serious and systemic failures” in MI5’s conduct, while also criticizing the internal reviews that previously absolved those involved.

Liberal News Analysis: What Does This Development Mean?

The findings expose a tension between secrecy-driven operational culture and accountability. For the domestic security sector, the report underscores the reputational and legal risks when institutional self‑protection overrides transparency. Public trust in intelligence oversight may suffer, prompting stronger external scrutiny and potential legislative or procedural reforms to prevent similar concealment. For victims of abuse, the case highlights how secrecy can compound harm and obstruct justice, increasing calls for clearer safeguards when informant handling intersects with criminal conduct.

Official reactions and next steps: MI5 Director General Sir Ken McCallum apologised for the incorrect evidence and the service acknowledged “serious failings.” Home Secretary Shabana Mahmood said she will strengthen oversight and assurance. The senior high court panel must decide whether to pursue contempt proceedings; criminal inquiry possibilities remain given findings of deliberate falsehoods.

Hızlı Bakış: Bilmeniz Gerekenler

• Sir John Goldring’s 10‑month report finds MI5 gave false evidence to three courts about departures from NCND concerning Agent X.
• Three senior MI5 figures—Officer 2, Officer 3 and Witness A—are criticised for lies, misleading colleagues or overstating positions in court submissions.
• Victim known as Beth was denied key evidence because courts accepted MI5’s false sworn statements, raising accountability and oversight questions.