Collapse of Espionage Case Highlights UK Government's Stance on China

The espionage case against Christopher Cash, a former parliamentary researcher, and Christopher Berry, a teacher, accused of spying for China, collapsed in September 2025 due to the UK government's failure to formally designate China as a national security threat. The two men were charged under the Official Secrets Act for allegedly passing sensitive information to a Chinese intelligence agent, specifically to Cai Qi, a senior member of the Chinese Communist Party. The charges were brought in April 2024, but the case was dropped just weeks before the trial was set to begin.

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Yvette Cooper, the UK Foreign Secretary, acknowledged that China poses various security threats to the UK, including espionage and cyber activities. However, she also emphasized the importance of maintaining economic cooperation with China, particularly in areas like climate change. Despite these threats, the UK government has historically refrained from labeling China as an outright enemy, instead using terms like "systemic competitor" and "epoch-defining challenge."

The Telegraph - UK

The Director of Public Prosecutions, Stephen Parkinson, stated that the case could not proceed because government witnesses were unable to confirm that China represented a threat to national security at the time of the alleged offences. This legal requirement stems from the UK's Official Secrets Act, which necessitates that prosecutors prove the accused were acting for an "enemy." The absence of such testimony led to the case's collapse, raising questions about the government's commitment to national security.

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The collapse of the case has sparked significant criticism from various political figures. Conservative lawmaker Chris Philp claimed that the Labour government, led by Prime Minister Keir Starmer, had access to internal documents that classified China as a threat but chose not to disclose them to the Crown Prosecution Service (CPS). Critics argue that this decision reflects a broader trend of appeasement towards China, prioritizing economic ties over national security.

Daily Mail

There are conflicting reports regarding the extent of the government's awareness of China's threat level. While the CPS indicated that no official designation was made at the time of the alleged offences, former intelligence officials and legal experts have pointed to public statements from MI5 and MI6 that warned of China's espionage activities. This discrepancy has led to accusations that the government is deliberately withholding information to protect diplomatic relations with Beijing.

Starmer Under Fire Over “Lie” on China Threat in Spy Case Collapse

In response to the case's collapse, Cooper expressed frustration, stating, "We know China poses threats to UK national security," but emphasized the need for a balanced approach. Starmer defended his government's actions, asserting that the legal framework required evidence based on the situation at the time of the alleged offences, which did not classify China as a threat.

Daily Mail

• “We know China poses threats to the UK national security.” — Yvette Cooper, Foreign Secretary

The Independent

• “The government must come clean. Who is responsible for spiking the prosecution?” — Alicia Kearns, Conservative MP

PBS News Hour

• “You simply cannot have a serious national security case collapsing without some proper explanation being given to the public. The Attorney General has to attend Parliament to explain what has happened here.” — Lord Macdonald, former Director of Public Prosecutions

Starmer Under Fire Over “Lie” on China Threat in Spy Case Collapse

The fallout from this case continues to unfold, with calls for a thorough investigation into the government's handling of national security issues related to China. As Parliament reconvenes, pressure is mounting on the Attorney General to provide clarity on the circumstances surrounding the case's abrupt end. The implications of this incident may influence future UK-China relations and the government's approach to national security.

Starmer Under Fire Over “Lie” on China Threat in Spy Case Collapse