The political spotlight will turn to the legislature on Jan 8 and 9 when former Parliament president Somsak Kiatsuranon, ex-Senate speaker Nikom Wairatpanij and former prime minister Yingluck Shinawatra take the hot seats as the NLA starts deliberations on their retroactive removals from office.
Mr Peerasak said Friday the process will be conducted independently from the NCPO, which has issued no ''political orders'' to take action against the three.
''I'm not worried that the impeachment will turn political," he said.
As the senate speaker and parliament president, the two were accused by the NACC of abuse of their authority in violation of the 2007 constitution by trying to amend the charter on senate composition. The amendment was shot down by the Constitutional Court
The former prime minister faces impeachment on charges of negligence related to alleged corruption in the rice-pledging scheme
The three cases were put forward to the NLA by the National Anti-Corruption Commission.
Although the three are out of politics, the impeachment will have implications on their future as they would face a five-year ban from politics if the NLA agrees with the anti-graft commission's findings and impeaches them.
The three will have a chance to fight the allegations when the NLA gives them an opportunity to defend themselves after deliberations begin next week for Mr Somsak and Mr Nikom,and a day after for Ms Yingluck. But none will be allowed to present additional evidence to counter the accusations.
''I cannot predict the results. It's up to the judgment of each of NLA members,'' Mr Peerasak said.
All 250 NLA members were handpicked by the National Council for Peace and Order which deposed the Yingluck government in the May 22 coup.