On May 28, the Chinese central government passed the HK National Security Law which caused international condemnation. Prof.Yen Chen-shen, a researcher and professor of Institute of International Relations at National Cheng Chi University, said many think the passage of the law means the end of One Country Two Systems in Hong Kong but he said Hong Kong is still different from the mainland in a way that Hong Kong still enjoys a limited democracy such as access to the social media and the internet, the prevalence of English in the street signs and government services and so on.