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Men jailed for spying for Chinese intelligence in UK

Published June 18, 2026 · Updated June 18, 2026 · By Charles Thomas

UK Officials Sentenced for Espionage Linked to Chinese Intelligence

Men jailed for spying for Chinese - Two individuals, Chi Leung "Peter" Wai and Chung Biu "Bill" Yuen, were sentenced to prison terms for aiding Chinese intelligence operations within the UK. Wai received a 10-year sentence, while Yuen was given eight years, following convictions for assisting a foreign intelligence service under the National Security Act. Wai, a former UK police officer, used his role as a Border Force official at Heathrow Airport to access the Home Office’s computer system, enabling the tracking of Hong Kong dissidents. He was also convicted of misuse of public office.

Judge’s Remarks on National Security

During sentencing at the Old Bailey on Thursday, Mrs Justice Cheema-Grubb emphasized that the defendants’ actions "threaten the sovereignty of the state." The case highlighted concerns about foreign interference and how hostile nations might target individuals in Britain. Pro-democracy activists from Hong Kong, including those with bounties on their heads, observed the proceedings in the public gallery.

Operation and Partnerships

The men were part of a "shadow policing operation" conducted for the Hong Kong authorities, which extended to support Chinese state objectives. Yuen, a former Hong Kong police officer, served as a liaison with Chinese officials before working as an office manager at the Hong Kong Economic and Trade Office in London. Wai had previously held roles with the Metropolitan Police and the Royal Navy, and later established his own security firm, D5 Security.

Trickett’s Role and Tragic Outcome

A fellow Border Force officer, Matthew Trickett, an ex-Royal Marine, was drawn into the surveillance network. In November 2023, Trickett was assigned to monitor Nathan Law, a prominent Hong Kong activist with a HK$1 million bounty. Shortly after being charged alongside Wai and Yuen, Trickett was found dead in a suspected suicide, pending an inquest in November.

Investigation Scope and Statements

The probe involved analyzing over 20 terabytes of data, including messages and records in multiple languages. Cdr Helen Flanagan, leading the London Counter Terrorism Policing, stated that such activities would not be tolerated. "We will identify anyone working for a foreign state and apply the full force of the National Security Act," she added. Security Minister Angela Eagle echoed this, vowing to hold China accountable for actions endangering British citizens.

Broader Context of the Case

Wai, who holds dual British and Hong Kong passports, had a diverse career spanning law enforcement and private security. His involvement in tracking pro-democracy figures, including Conservative MP Sir Iain Duncan Smith, underscored the scale of the surveillance. The case has intensified debates about transnational repression and the risks posed by foreign intelligence activities within the UK.

"These convictions send a clear message that transnational repression, foreign interference, and unauthorised surveillance will not go unchecked." – Bethan David, Head of Counter-Terrorism at the Crown Prosecution Service