The opposition has established three investigative committees to scrutinise the dismissal of a corruption complaint against former minister Saksayam Chidchob, alleged collusion in the Senate election, and the disputed Khao Kradong land case.
The opposition whip committee approved the panels during its first formal meeting on Tuesday under the leadership of Parit Wacharasindhu, party-list MP of the People's Party and newly appointed chair of the committee.
Mr Parit described the investigations as part of the opposition's responsibility to ensure transparency and accountability within the political system.
Although coalition members held differing political positions, he said they shared a commitment to scrutinising the government and proposing alternatives.
"A political system without an opposition is extremely dangerous," Mr Parit said, warning that unchecked executive power could weaken public scrutiny and democratic oversight.
The first committee will focus on the National Anti-Corruption Commission (NACC)'s decision to dismiss a complaint against Mr Saksayam, who was accused of concealing shares in a private company.
Mr Parit alleged that preliminary findings indicated the anti-graft body may have ended the case without conducting a full investigation, relying only on an initial assessment that found insufficient evidence.
The opposition plans to submit a petition to the House Speaker within this month and has requested clarification from the NACC regarding its internal deliberations and Mr Saksayam's defence statements. Opposition members are also expected to summon NACC representatives to explain the agency's procedures.
The second committee will investigate allegations of collusion and vote-rigging during the 2024 Senate election process. Mr Parit said civil society groups had submitted additional evidence, including alleged financial trails, coordinated meetings and voting irregularities.
The third committee will examine the long-running Khao Kradong land dispute.
Opposition parties are expected to discuss additional investigative mechanisms in the coming weeks.
