LONDON – In a landmark national security ruling that has escalated diplomatic tensions between London and Beijing, two men – a former United Kingdom border official and a retired Hong Kong police officer – have received lengthy prison sentences on charges of orchestrating a spy operation targeting Beijing’s critics based on British soil. The convictions mark one of the highest-profile cases prosecuted under the U.K.’s post-Brexit National Security Act, underscoring growing concerns over transnational political surveillance on Western territory.
Sixty-six-year-old Bill Yuen, a former Hong Kong Police superintendent who went on to work as office manager at the Hong Kong Economic and Trade Office (HKETO) in London – the regional government’s official U.K. representative – and 41-year-old Peter Wai, a former Metropolitan Police officer who later joined U.K. Border Force, were handed down their sentences Thursday at London’s Central Criminal Court. Judge Bobbie Cheema-Grubb imposed a 10-year prison term on Wai and an eight-year term on Yuen, condemning the pair’s actions as deliberate, coordinated and severely damaging to the safety of those they targeted.
According to prosecution arguments, the two Chinese-British nationals operated a covert surveillance network between 2020 and 2022, posing as legitimate law enforcement or intelligence personnel to monitor and collect intelligence on Hong Kong pro-democracy dissidents and Beijing critics residing in the U.K. Their list of targets included prominent high-profile figures: Nathan Law, a former Hong Kong opposition lawmaker who fled to the U.K. after Beijing’s imposition of the 2020 national security law, and multiple British parliamentarians who have publicly criticized Chinese policy. Prosecutors also revealed that the pair referred to the pro-democracy activists they targeted with the dehumanizing slur “cockroaches”, a term widely adopted by pro-Beijing factions to describe opposition supporters during Hong Kong’s 2019 pro-democracy protests.
Last month, a jury found both men guilty on charges of violating the National Security Act for providing assistance to a foreign intelligence service. Wai received an additional conviction for misconduct in public office, after he abused his position as a border official to access a secure government computer and pull personal information on individuals of interest to Hong Kong authorities. In her sentencing remarks, Cheema-Grubb emphasized that the pair’s repeated covert operations had inflicted ongoing fear and psychological harm on the people they monitored, who had sought safety in the U.K. after fleeing political persecution.
Helen Flanagan, commander for Counter Terrorism Policing London, described the defendants’ activities as “truly chilling” in a post-sentencing statement. She noted that the targets of the spy ring were peaceful pro-democracy campaigners who had fled to the U.K. to seek sanctuary, only to be tracked and targeted for their political beliefs.
The case has sparked immediate diplomatic friction between the U.K. and China. Following the guilty verdict last month, British foreign ministry officials summoned Chinese Ambassador Zheng Zeguang to formally raise concerns over the transnational surveillance operation. In response, China’s Embassy in London denounced the proceedings as a politically motivated “farce” manufactured to provide cover for anti-China forces that had relocated to Britain. The Hong Kong government also issued a statement rejecting all links between the espionage operation and the Hong Kong administration or HKETO, claiming British authorities had launched the investigation on “groundless accusations”, abused legal processes and manipulated judicial proceedings to secure a conviction.
The verdict comes amid a steady deterioration in Sino-British relations over issues including Hong Kong’s political crackdown, increased Chinese assertiveness in the Indo-Pacific, and repeated allegations of transnational repression targeting dissidents based in Western countries.