Large scale Chinese spying in UK sparks political storm

Published: 16 October 2025. The English Chronicle Desk. The English Chronicle Online.

A political and legal storm has erupted in the United Kingdom after newly released witness statements revealed claims of “large-scale espionage” being carried out by China against the UK. The explosive revelation comes amid growing scrutiny over the collapse of a high-profile spy case involving two men accused of working for the Chinese Communist Party.

Deputy National Security Adviser Matthew Collins stated in his witness testimonies that China “presents the biggest state-based threat to the country’s economic security,” adding that its espionage operations pose a direct challenge to the UK’s prosperity and resilience. The Prime Minister ordered the publication of the statements in an attempt to clear up mounting questions about why the Crown Prosecution Service (CPS) dropped the case.

The CPS had concluded that evidence did not meet the threshold to demonstrate China was a threat to national security at the time of the alleged offences, prompting outrage from opposition politicians and members of Parliament. However, the release of the witness statements appears to contradict that position, intensifying speculation about possible political interference and the government’s handling of national security issues.

The case, which centred on former parliamentary researcher Christopher Cash and academic Christopher Berry, accused both men of collaborating with a senior figure within the Chinese Communist Party’s Central National Security Commission—an entity chaired by President Xi Jinping. The two were charged under the Official Secrets Act in April 2024, accused of gathering and passing information prejudicial to Britain’s safety and interests between December 2021 and February 2023. Both men continue to deny any wrongdoing.

Mr Cash expressed frustration following the publication of the statements, saying he had been placed in an “impossible situation” without the opportunity to prove his innocence in court. “I should not have to take part in a trial by media,” he said, arguing that the public release of selective evidence lacked crucial context. Mr Berry has declined to comment since the case collapsed.

China’s Foreign Ministry quickly dismissed the allegations, calling them part of a Western “smear campaign.” Spokesperson Lin Jian said, “China firmly opposes the peddling of so-called spy narratives and the vilification of our country.”

The government’s decision to publish the statements—three in total, written between December 2023 and August 2025—is highly unusual. The first statement was made under the Conservative government, while the latter two came after Labour took power. The language used in the second and third statements emphasised the dual nature of the UK’s relationship with China: “We will co-operate where we can, compete where we need to, and challenge where we must.”

That phrasing drew sharp criticism from Conservative MP Alicia Kearns, who said it mirrored the wording in Labour’s 2024 election manifesto. “There’s a direct lift from the Labour Party manifesto,” she said. “It’s very hard to believe there was no political interference.” Kearns argued that the CPS should have allowed the case to proceed, stating that “it’s for a jury to decide if China is or could be a threat to our country.”

Sources close to the Deputy National Security Adviser said Mr Collins believed he had supplied enough evidence to sustain prosecution when he filed his third statement this August. He reportedly described “the increasing Chinese espionage threat posed to the UK” as a justification for continued legal action.

However, CPS head Stephen Parkinson has been criticised for dropping the charges, with MPs claiming he bowed to political pressure. Parkinson told senior lawmakers that the evidence was “95% of the way there,” but still fell short of the threshold necessary for a realistic prospect of conviction.

Government minister Stephen Kinnock rejected claims of interference, describing the accusations as “unsubstantiated.” He insisted that Mr Collins’s statements merely reflected the broader diplomatic and economic context of UK-China relations, and that the CPS made its decision independently. “It is, of course, a matter for the CPS to determine whether or not the evidentiary basis has been met,” Kinnock told Times Radio.

Despite these assurances, the episode has raised difficult questions about how national security and economic interests intersect in modern British foreign policy. Critics say the government’s reluctance to label China as a “national security threat” may have undermined efforts to confront espionage risks head-on. Others warn that such hesitation could leave the UK vulnerable to foreign interference in sensitive sectors, from research and technology to politics.

The controversy has also exposed tensions between the Labour government and its Conservative predecessors over how to balance security with economic cooperation. While the Labour administration stresses a pragmatic approach to China—one that blends competition and collaboration—critics accuse it of soft-pedalling on espionage in the interest of trade.

Meanwhile, security experts say the revelations highlight the increasingly complex nature of state-based espionage. As China expands its global influence, the UK faces growing challenges in protecting intellectual property, political institutions, and critical infrastructure from foreign infiltration.

As investigations continue, the fallout from this collapsed spy case has left deep political divisions and renewed debate about Britain’s ability to defend itself against covert foreign threats. Whether or not new prosecutions emerge, the controversy underscores the mounting tension between transparency, justice, and the need to protect national security.