The commander of China's military garrison in Hong Kong warned the law would "punish any acts of separatism".
The city's chief executive, Carrie Lam, told reporters that there was "no need for us to worry" over the move being considered by China's ceremonial National People's Congress. Television footage showed newly added metal and water-filled barricades near the city's legislature, Central Government Offices and People's Liberation Army garrison building.
China has proposed a set of security laws that would launch the establishment of Chinese intelligence bases in the global financial hub and separate its legal status, a move that USA officials have called a "death knell" for Hong Kong's independence.
"I fully support the NPC's draft decision on establishing and improving the legal system and enforcement mechanisms for the HKSAR to safeguard national security which allows Hong Kong to be back on track, ensuring its long-term prosperity and stability", he said.
Britain, the longtime colonial master in Hong Kong, turned the territory over to China in 1997 under a treaty that bound Beijing's communist rulers to respect Hong Kong's autonomy as a special administrative region and to leave its liberal economy and government for 50 years under the formulation "one country, two systems".
Hong Kong residents have once again taken to the streets in large numbers to rally for independence, calling the national security law "a direct assault on their civil liberties".
And China has responded with threats of its own, including weighing unprecedented sanctions against specific us lawmakers who have proposed legal action against Beijing for its handling of the pandemic.
A new national security law proposed last week by Beijing has revived mass protests by demonstrators who say China aims to curb the freedoms enjoyed in Hong Kong, a global financial centre with broad autonomy.
Nearly every official department in Hong Kong has issued statements of support for the proposed law this week - from the police to the fire department and the Government Flying Service.
On Sunday, thousands took to the streets of Hong Kong Island to protest against the CCP's national security law that may be passed in Hong Kong without the scrutiny of the legislative council.
"In the last 23 years, whenever people anxious about Hong Kong's freedom of speech and freedom of expression and protest, time and again, Hong Kong has proven that we uphold and preserve those values".
But Xie said the legislation would, in fact, strengthened it and rights would be preserved.
The move by China to pass the legislation signals the central government's determination to take greater control of Hong Kong after months of pro-democracy protests previous year.
Smith, the primary author of the Hong Kong human rights legislation signed by Trump previous year, also condemned Xi for "a willful and gross negligence in not conveying accurate and timely virus information to an all-too-malleable World Health Organization director-general that enabled a pandemic". There is widespread concern the new law's components that criminalize separatism, subversion, terrorism, and activities by foreign forces could be broadly used to crush dissent in the city. In an interview with CNN, the paper's publisher, Jimmy Lai, said that Trump "is the only one who can save us".