He was found guilty under the National Security Act of assisting a foreign intelligence service alongside Chung Biu "Bill" Yuen, 65, who was initially his contact with the Hong Kong authorities. Wai was also found guilty of misconduct in public office. The jury could not agree on a charge against both men of foreign interference by forcing entry into the home of an alleged fraud suspect originally from Hong Kong in West Yorkshire. The prosecution said it would not be seeking a retrial. Wai started working as a Border Force officer at Heathrow Airport in December 2020, which gave him access to a vast database of information about foreign nationals in the UK. He searched it on his days off and sick days, earning money on the side by tracking Hong Kongers who had fled pro-democracy crackdowns for his Chinese contacts. There seems to have been no checks on his access to the database to prevent him doing this. But he had been providing information on dissidents before then, referring to them in messages as "cockroaches". Yuen became his contact with Chinese authorities. A former Hong Kong police officer, he worked as the office manager of the Hong Kong Economic and Trade Office (HKETO) in London. (BBC)