UK-China Espionage Case Collapses: Legal Technicalities and Political Accusations

UK Prime Minister Keir Starmer expressed disappointment over the collapsed espionage case but attributed it to procedural matters.

London:

A trial involving two men accused of conducting espionage activities for China was set to commence this week in London, but prosecutors unexpectedly abandoned the case last month, according to The New York Times.

The decision followed a separate legal controversy concerning Bulgarians accused of spying for Russia. The central issue revolved around interpreting the term "enemy" under the Official Secrets Act. Defense attorneys for the Bulgarian defendants contended that this designation should exclusively apply to nations either at war with Britain or likely to become adversaries in the foreseeable future.

Subsequently, the Court of Appeal determined that an enemy nation could be one that constituted "a current threat to the national security of the UK," such as Russia, while specifying that "friendly powers would fall outside this definition," as The New York Times reported.

This revised legal interpretation created complications for prosecutors in the China espionage case. They would have needed to demonstrate that during the alleged spying activities, China was considered a threat to Britain's national security. However, between December 2021 and February 2023, the Conservative-led government had not classified China as an adversary, instead describing it as a "systemic competitor" in 2021 and an "epoch-defining and systemic challenge" in 2023.

Stephen Parkinson, Director of Public Prosecutions, clarified in correspondence to lawmakers on Tuesday that prosecutors had devoted "many months" attempting to secure government statements that would satisfy the updated legal requirements.

Although witness statements were provided, "none of these stated that, at the time of the offense, China represented a threat to national security, and by late August 2025 it was realized that this evidence would not be forthcoming," Parkinson explained. "When this became apparent, the case could not proceed," according to The New York Times.

Kearns, the lawmaker whose researcher Cash worked for, has accused Prime Minister Keir Starmer's administration of deliberately undermining the prosecution to "appease Beijing."

Starmer, formerly Britain's chief prosecutor, acknowledged the government's disappointment regarding the case's collapse but told reporters Tuesday night that procedural issues were to blame. "You can't prosecute someone two years later in relation to a designation that wasn't in place at the time," he explained.

Had the government furnished a statement declaring China as unfriendly, such classification could have faced challenges from the defense in court.

This explanation has failed to satisfy political critics who argue that the government could have provided some form of witness statement to support the prosecution's case. These critics suggest the failure to do so conveniently protected trade relations with Beijing, as reported by The New York Times.

In April 2024, two individuals—Christopher Cash, then working as a parliamentary researcher for senior Conservative lawmaker Alicia Kearns, and Christopher Berry, a teacher—were charged with gathering and supplying information "prejudicial to the safety and interests" of Britain to China between December 2021 and February 2023. Both men denied these accusations.

The Official Secrets Act of 1911, under which they were charged, criminalizes information gathering that is "useful to an enemy."

The issue that derailed this case is unlikely to recur, as the Official Secrets Act has been superseded by new legislation called the National Security Act.

This new law, effective since 2023, applies to conduct for any "foreign power," not exclusively for an "enemy" state.

Jonathan Hall, the British government's adviser on tackling state threats, noted that under the new legislation, espionage prosecutions can proceed "without the UK being at war, or at risk of war, and without even having to show that the foreign power is a persistent threat."

In 2015, the Conservative government had promised a "golden decade" of Anglo-Chinese relations—rhetoric no mainstream British politician would employ today. Yet the case exemplifies Downing Street's fundamental dilemma in managing relations with the world's rising superpower: balancing economic interests against national security concerns, according to The New York Times.

"We will cooperate where we can, compete where we need to, and challenge where we must," stated the Labour Party in its policy agenda before the 2024 general election, which it won.

The government subsequently attempted to improve relations that had deteriorated in recent years, partly due to China's actions in Hong Kong and alleged Chinese cyberattacks. Last November, Starmer became the first British prime minister to meet President Xi Jinping in more than six years.

Nevertheless, concerns have intensified within security services, and in his most recent public threat assessment, Ken McCallum, director general of MI5, Britain's domestic intelligence agency, specifically mentioned China in a section addressing "state threats."