Media tycoon and pro-democracy advocate Jimmy Lai has been found guilty of foreign collusion following a landmark trial in Hong Kong.

Lai was arrested in 2020 under the national security law imposed by Beijing in response to huge pro-democracy protests.

Critics say the law has been used to crack down on dissent, although Beijing and Hong Kong defend it as necessary to maintain stability.

Here’s everything you need to know about the case, and what the outcome means for Lai, and Hong Kong.

Video by Kellie Highet and Meiqing Guan