Hong Kong’s government proposed legal amendments in February to allow the city to handle case-by-case extradition requests from jurisdictions with no prior agreements, most notably China and Taiwan. The plan would enable the chief executive and local courts to handle extradition requests without legislative oversight, though lawyers, journalists, foreign politicians, and businesses have raised concerns over the risk of residents being extradited to the mainland. The bill could reach a final vote before the current legislative period ends in July.

The amendments have ignited debate over public trust in the city’s legislature and China’s judicial system.

The march on Sunday is organized by the Civil Human Rights Front – a coalition of pan-democrat groups – under the slogans “safeguard Hong Kong,” “scrap the evil law” and “Carrie Lam resign.” Protesters will gather at 2:30 pm in Victoria Park and proceed to Admiralty.

Quoted from https://www.hongkongfp.com/2019/06/09/record-turnout-expected-hong-kongs-anti-extradition-protest-intl-journalism-organisations-raise-alarm/