Hong Kong journalists and lawyers scramble to adapt to security law

Protective measures taken and social media erased as both question how they can operate

Journalists and lawyers in Hong Kong are scrambling to adapt as Chinese authorities set up the apparatus to enforce a controversial national security law, including appointing a hardline party official to head a new security agency.

Zheng Yanxiong, who is best known for tackling protests on the mainland, is to run the office established under the law that empowers mainland security agents to operate in Hong Kong openly and unbound for the first time.