British Border Force official convicted in first Chinese espionage case

A British Border Force officer and a retired Hong Kong police superintendent were convicted at the Old Bailey in London after prosecutors said they helped a foreign intelligence service run surveillance against Hong Kong dissidents living in Britain. The verdicts against Peter Wai and Bill Yuen, returned on 7 May 2026, marked the first conviction for Chinese espionage in Britain and the first in this context under the National Security Act.

Wai, who worked for Border Force, was also found guilty of misconduct in public office for unlawfully accessing the Home Office’s Atlas immigration database. Prosecutors said the system held sensitive information, including passport details and addresses of foreign nationals. The court heard that Wai used the database on his days off and when he called in sick to search for Hong Kong dissidents and pro-democracy supporters in the UK. He also referred to some of those people as “cockroaches”, a detail that underscored how the breach was not just technical but deeply personal.

The case exposed how sensitive government systems can be exploited from within, especially when access controls rely too heavily on trust. Prosecutors said Wai and Yuen carried out “shadow policing” operations in Britain, targeting dissidents and political figures, including former Hong Kong lawmaker Nathan Law, Sir Iain Duncan Smith and Baroness Kennedy of the Shaws. Yuen, identified as a retired Hong Kong police superintendent and manager at the Hong Kong Economic and Trade Office in London, was convicted alongside Wai of assisting a foreign intelligence service.

The convictions came after a separate Westminster spy case collapsed last October, when charges were dropped against a parliamentary researcher and an academic, a development that had already raised questions about the strength and consistency of the UK’s counter-espionage response. After the verdicts, the British government said it had changed systems to strengthen security. The Crown Prosecution Service said the case sent a clear message that transnational repression, foreign interference and unauthorized surveillance would not be tolerated.

The Foreign Office summoned China’s ambassador, Zheng Zeguang, after the convictions. Hong Kong’s government rejected the allegations, saying the case was unrelated to it and to the London trade office. For UK agencies, the verdicts left a sharper warning than any diplomatic exchange: insider access, once abused, can turn ordinary administrative systems into tools of political surveillance.