Beijing has imposed sweeping new national security legislation on Hong Kong, criminalising 'secession, subversion, terrorism and collusion with foreign forces'. Critics fear the law will enable a crackdown on protest and dissent as China seeks to exert new levels of control over the semi-autonomous territory. The Guardian's Beijing bureau chief, Lily Kuo, explains what this means for the city after a year of unrestThe Guardian view on Hong Kong: still fightingHongkongers on China's crackdown: 'I feel helpless and hopeless'Hong Kong journalists and lawyers scramble to adapt to security law Continue reading...