Anti-China, destabilizing forces and radical localists used the HKSAR's electoral platforms and the deliberation platforms of the LegCo and the District Councils, or their position as public servants, to blatantly carry out anti-China and destabilizing activities, Wang said.

Necessary measures must be taken to improve the electoral system and remove existing institutional risks to ensure Hong Kong is administered by Hong Kong people with patriots as the main body, he said.

The decision received widespread support.

According to a survey conducted by the think-tank Bauhinia Institute, more than 80 percent of local people recognize the necessity of upholding the "patriots administering Hong Kong" principle and nearly 70 percent support the central authorities in improving Hong Kong's electoral system and closing institutional loopholes.

Over the past weekend, Muk and his friends set up an opinion poll station in Wan Chai and were overwhelmed by the numbers of people flocking to express their support. "More than 200 passersby stopped and signed their names in support of the NPC decision within one hour," he said.

When the NPC session concludes on Thursday, the national legislature is expected to officially make the decision on improving the HKSAR's electoral system and authorize its Standing Committee to amend Annex I and Annex II to the Basic Law of the HKSAR in accordance with the decision.

After the amendment at the state level is completed, the HKSAR will amend relevant local laws accordingly.