[A protester in his late 20s, who only gave his name as Tom, said while his peers had contemplated the possibility of the Hong Kong government pushing ahead with Article 23, few predicted Beijing would impose the national security law on the city directly. It was a masterstroke few saw coming.]

https://www.scmp.com/news/hong-kong/politics/article/3087926/hong-kong-protests-one-year-national-security-law-looming

https://www.scmp.com/news/hong-kong/law-and-crime/article/3088034/hong-kong-protests-can-new-police-chiefs-strategy-act