This led to concerns that the bill would subject Hong Kong residents and visitors to the jursidiction and legal system of mainland China, which would undermine the region's autonomy and Hong Kong people's civil liberties.As the protests progressed, the protesters laid out five key demands, which were the withdrawal of the bill, investigation into alleged police brutality and misconduct, the release of arrested protesters, a complete retraction of the official characterisation of the protests as "riots", and Chief Executive Carrie Lam's resignation along with the introduction of universal suffrage for election of the Legislative Council and the Chief Executive.