Stimulus
Text extract (adapted): "For decades Hong Kong's residents held an identity distinct from the mainland, shaped by rule of law, a free press and the 'one country, two systems' promise. After the mass protests of 2019, Beijing imposed a National Security Law in June 2020 that criminalised secession, subversion and 'collusion with foreign forces'. Officials said the law restored order and a proper sense of national belonging. Within two years, opposition newspapers had closed, activists had been jailed or had fled, and civil-society groups had disbanded. Surveys had already shown that fewer young people identified as 'Chinese'. Critics argue that a shared identity cannot be legislated into existence; imposing one by force tends to harden the very difference it seeks to erase."
(a) Using the stimulus, three things it suggests about Beijing's approach to identity in Hong Kong.
(b) one political issue raised by attempting to impose a national identity through law.