“Article 23”: How China wants to take away the freedom of the people of Hong Kong. Article 23 of the Hong Kong Constitution, the so-called “Basic Law” of 1997, provides for corresponding legislation.
Hong Kong should adopt laws “to prevent treason, secession, sedition, subversion” against the central government and the “theft of state secrets”. What is meant by this remains vague, as is often the case when “national security” is discussed in China.