Charges Dropped Against Former UK Parliamentary Researcher and Associate Accused of Espionage for China

London, September 15, 2025 — Prosecutors in the United Kingdom have abruptly discontinued espionage charges against two men, including a former parliamentary researcher, who were accused of spying on behalf of China, marking a dramatic turn in a high-profile national security case that had gripped Westminster for nearly two years.

The Crown Prosecution Service (CPS) announced the decision today, citing insufficient evidence to proceed following a thorough review of the case. Christopher Cash, 30, a former researcher who once worked for Conservative MPs focused on international affairs, and Christopher Berry, 33, faced charges under the Official Secrets Act for allegedly gathering and sharing sensitive information prejudicial to UK interests between January 2022 and February 2023.

Both men, who had pleaded not guilty earlier this year, were informed of the CPS’s reversal at the Old Bailey court in London. Cash, from Whitechapel in east London, was specifically accused of obtaining documents “calculated to be… useful to an enemy.” Berry, also from London, faced similar allegations of communicating prejudicial information to a foreign power. The charges stemmed from arrests made in March 2023 by the Metropolitan Police’s Counter Terrorism Command, amid heightened concerns over Chinese interference in British politics.

In a statement released through his legal team, Cash expressed profound relief and vindication. “I have maintained my innocence from the outset, and today’s decision affirms that these baseless accusations should never have been brought,” he said. “This ordeal has been a nightmare, but it underscores the need for caution in how national security claims are handled.” Berry’s representatives echoed the sentiment, describing the prosecution as “a miscarriage of justice that has irreparably damaged two lives.”

The case first emerged in September 2023 when media reports identified Cash as the parliamentary aide suspected of links to Beijing. At the time, sources revealed he had assisted MPs including Security Minister Tom Tugendhat, a vocal critic of China and co-founder of the China Research Group, as well as Alicia Kearns, chair of the Foreign Affairs Select Committee. Neither MP has been implicated, and Tugendhat has previously stated he had no contact with Cash after assuming his ministerial role in 2022.

The allegations ignited widespread alarm in Westminster, prompting Prime Minister Rishi Sunak—at the time—to raise “significant concerns about Chinese interference” directly with Chinese Premier Li Qiang during the G20 summit in India. China swiftly dismissed the claims as “malicious slander” and a “self-staged political farce,” with a foreign ministry spokesperson urging the UK to cease “anti-China political manipulation.”

The scandal drew parallels to earlier incidents, including a 2022 parliamentary alert over Christine Lee, a lawyer accused by MI5 of covertly influencing MPs on behalf of the Chinese Communist Party. Lee, who denies wrongdoing and is pursuing legal action against the security service, had donated over £500,000 to Labour MP Barry Gardiner’s office before the warning.

Security experts have welcomed the charges’ dismissal but cautioned against complacency. Sir Alex Younger, former head of MI6, noted in 2023 that such infiltration attempts are “an intrinsic part of the way in which China seeks to protect its power.” The Inter-Parliamentary Alliance on China, a cross-party group, reiterated calls for stronger safeguards, stating it remains “appalled at reports of potential infiltration” and urging reforms to parliamentary vetting processes.

The CPS provided limited details on its reasoning, stating only that “after careful consideration of all available evidence, there is no longer a realistic prospect of conviction.” The Metropolitan Police confirmed the investigation remains open but offered no further comment.

This development comes amid escalating geopolitical tensions between London and Beijing, including disputes over Hong Kong, Taiwan, and economic espionage. UK officials have intensified scrutiny of foreign influence, with recent legislation like the National Security Act of 2023 aimed at bolstering defenses against state-sponsored threats.

As the dust settles, questions linger over the initial intelligence that led to the arrests and whether procedural missteps contributed to the case’s collapse. For Cash and Berry, the ruling ends a protracted legal battle but leaves scars on their reputations and careers in public service.