Public security cameras According to reports by South China Morning Post, the city is home to some 50,000 security cameras, with some 20,000 operated by the Housing Authority of Hong Kong. It is not known whether the cameras contain facial recognition capabilities. Installation of Cameras in Classrooms In March 2020, pro-Beijing legislators of the Hong Kong Legislative Council suggested that cameras be installed in classrooms in order to monitor the contents of lectures being delivered to students in addition to monitoring the teachers themselves. Application of Chinese law within Hong Kong West Kowloon Station In June 2021, the Hong Kong Court of Appeal upheld the constitutional status of a controversial arrangement to allow the application of mainland Chinese law of the West Kowloon Terminus of the cross-border high speed rail way between the Special Administrative Region of Hong Kong and the territory of the People's Republic of China (mainland China). The plan would mean that mainland law enforcement officials from MPS or the Ministry of Public Security and the Shenzhen Municipal Public Security Bureau would be able to enforce Chinese law inside the station and potentially arrest any dissidents of the ruling CCP when they cross over into mainland China at the checkpoint. Critics described the arrangement as infringing upon Hong Kong's autonomy and being in violation of the Hong Kong Basic Law. Since 2007, a similar arrangement has operated at the border where Hong Kong jurisdiction overlaps with areas of the Shenzhen Bay Port on the mainland. Earlier in 2019, Simon Cheng an investment officer at the British Consulate General in Hong Kong was arrested by public security officers at the station after returning from a business trip in Shenzhen for allegedly soliciting prostitution. Cheng was a vocal activist and supporter of the 2019 pro-democracy protests in Hong Kong. Hong Kong-Zhuhai Macau Bridge On 15 December 2019, the Hong Kong Immigration department received reports that a man had apparently disappeared while crossing the Hong Kong-Zhuhai Macau Bridge to Macau. The bridge, since constructed in 2018 had hosted a Chinese police checkpoint staffed by officers from the mainland China Immigration Inspection agency of the Ministry of Public Security. Upon further investigation it was revealed the man had been detained by Chinese police while on his way to Macau on the Zhuhai-Macau Port Artificial Island (a section of the bridge mid-way leading into an underwater tunnel). Reports by the Hong Kong