After the failure of the Umbrella Revolution in 2014 and the 2017 imprisonment of Hong Kong democracy activists, citizens began to fear the loss of the "high degree of autonomy" as provided for in the Hong Kong Basic Law, as the government of the People's Republic of China appeared to be increasingly and overtly interfering with Hong Kong's affairs. Notably, the NPCSC saw fit to rule on the disqualification of six lawmakers; fears over state-sanctioned rendition and extrajudicial detention were sparked by the Causeway Bay Books disappearances. Xi Jinping's accession to General Secretary of the Chinese Communist Party in 2012 marked a more hardline authoritarian approach, most notably with the construction of Xinjiang internment camps. The spectre that Hong Kong may similarly be brought to heel became an important element in the protests.