Collapse of China Spy Trial: Political Fallout and Legal Implications

The espionage trial involving Christopher Cash, a former parliamentary researcher, and Christopher Berry, a teacher, collapsed in September 2025 after the Crown Prosecution Service (CPS) failed to secure necessary evidence from the UK government that China was a national security threat at the time of the alleged offences. Both men were accused of passing sensitive information to a Chinese intelligence agent between December 2021 and February 2023, but the case was dropped just weeks before it was set to go to trial.

BBC NewsUK-China spy case collapses over lack of threat designationPBS News HourSky News

The Director of Public Prosecutions, Stephen Parkinson, indicated that the CPS had sought evidence from the government for several months but received none that met the legal threshold required under the Official Secrets Act 1911. This act necessitates proof that the accused were acting for an "enemy," defined as a state posing a threat to UK national security. The government's official stance during the relevant period described China as an "epoch-defining challenge," not an enemy.

UK-China spy case collapses over lack of threat designation

Prime Minister Sir Keir Starmer has maintained that the trial's collapse was due to the previous Conservative government's failure to classify China as a threat. He stated, "You can’t prosecute someone two years later in relation to a designation that wasn’t in place at the time." Starmer emphasized that the evidence must reflect the circumstances at the time of the alleged offences, which were under the Conservative administration.

The Independent

However, this explanation has faced scrutiny. Former national security adviser Lord Mark Sedwill and other officials have questioned the adequacy of the government's position, asserting that intelligence assessments had long identified China as a significant threat. Sedwill remarked, "Of course China is a national security threat to the UK," challenging the legal interpretation that led to the case's collapse.

Starmer denies ministers caused China spy case collapse

The collapse of the trial has sparked a blame game among political factions. Conservative leaders, including Kemi Badenoch, have accused the Labour government of deliberately undermining the prosecution to maintain favorable relations with China. Badenoch stated, "Labour deliberately collapsed the trial... because the Prime Minister wants to suck up to Beijing." Critics argue that this reflects a broader reluctance within the Labour government to confront China's actions, especially as it seeks to reset diplomatic ties.

Daily Mail

Legal experts have also weighed in, with some arguing that the CPS's failure to secure evidence from the government raises serious questions about the prosecution's preparedness. Nick Vamos, a former CPS official, stated, "The explanation from the DPP still doesn’t add up," suggesting that the CPS either lacked sufficient evidence to charge the defendants initially or misunderstood the legal requirements.

The Independent

In a letter to parliamentary committees, Parkinson expressed frustration over the lack of government cooperation, stating, "Efforts to obtain that evidence were made over many months... but none of these stated that at the time of the offence China represented a threat to national security." The CPS's inability to proceed with the case has led to calls for accountability from various political leaders, including demands for the Attorney General to explain the situation in Parliament.

iNews

While the Labour government insists that the previous Conservative administration's stance on China dictated the legal framework for the trial, former officials and legal experts argue that the government could have provided evidence of China's threat status based on existing intelligence assessments. This discrepancy highlights a significant gap in the narrative surrounding the case and raises questions about the government's handling of national security issues.

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

As pressure mounts on the Labour government to clarify its position on China and the implications of the trial's collapse, further inquiries are expected. National security adviser Jonathan Powell is set to face questions from MPs regarding his role in the case, and the broader implications for UK-China relations will likely continue to be a contentious topic in Parliament.

iNews

The collapse of the China spy trial has exposed deep divisions within the UK government regarding national security policy and its approach to China. As the political fallout continues, the case serves as a critical reminder of the complexities involved in prosecuting espionage cases and the need for clear, consistent government policy in matters of national security.

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