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Daniel Sandford UK correspondent

Metropolitan Police

Chi Leung "Peter" Wai and Chung Biu "Bill" Yuen were found guilty on Thursday after a trial at the Old Bailey

A UK immigration officer has been found guilty of working for Chinese intelligence as part of a "shadow policing operation".

Chi Leung "Peter" Wai, 40, used his access to the Home Office computer system to track Hong Kong dissidents based in the UK through the main immigration database.

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.…