Before dawn Friday, more than 5,000 opposition Democrat Party supporters opposed to the amnesty plan rallied outside their headquarters. The party's lawmakers said they would file a complaint to the Constitutional Court to block the legislation, and more protests were expected later Friday.
"We will fight against this bill through every channel allowed under the constitution. We will keep protesting until the amnesty bill is struck down. And if necessary, we might have to call for the government to step down," Thaworn Senniam, a Democrat MP, said on Friday.
The original draft of the bill did not extend amnesty to the leaders of both the pro-Thaksin Red Shirt protests and the anti-Thaksin Yellow Shirt groups, but a House committee vote in mid-October changed the bill to include them.
Since then, the legislation has been criticized by varied opponents, including international rights organizations, the anti-Thaksin camps and even the progressive Red Shirt movements who oppose immunity for former Prime Minister Abhisit Vejjajiva and his then-deputy Suthep Thaugsuban for their alleged involvement in the 2010 crackdown.
Abhisit and Suthep, currently opposition Democrat lawmakers, on Thursday reported to public prosecutors to acknowledge the charges of murder for ordering the crackdown. Abhisit earlier said he opposed the amnesty bill and would fight the charges in court to prove his innocence.
The Democrat Party accused Thaksin of masterminding the amnesty bill to free himself from serving a 2-year jail term in a corruption case.