Labor has said it will support changes to the law, calling it a “step in the right direction”.
Raab also confirmed that the government will extend its arms embargo – which has been in force with China since 1989 – to halt UK export equipment such as firearms, smoke grenades and chains in the region.
But China accused the British government of “brutal interference” by insisting that it had pledged to uphold international law.
The country has also promised a “resolute response” if the UK withdraws from extradition agreements.
Rahab told parliamentarians: “There remains considerable uncertainty as to how the new national security law will be applied.
“I would only say this: the UK is watching and the whole world is watching.”