Can I scan the code to call the police when I go to Beijing to the railway station?

I can't. When checking the health code at Beijing Railway Station, the station staff refused to enter the station on the grounds that the display of mobile phone health treasure was abnormal. Code scanning alarm can't enter the railway station. Beijing, referred to as "Beijing", is the capital of People's Republic of China (PRC). One of the four municipalities directly under the Central Government and the second largest city in China. It is a national political center, cultural center, international exchange center and scientific and technological innovation center.