"The new constitution should aim at designing an immune system for the country's democratic rule by adopting the theory of sufficiency economy as the state policy," the party's deputy leader Weerasak Khosurat said.

Weerasak said Parliament should be empowered to supervise the negotiations for free-trade agreements and have a final say on the implementation of privatisation policies.

"The point is, the people and their elected representatives should have a greater say on the government's work," he said.

He said media airwaves should be reallocated by an independent body and there should be an independent board for consumer protection.

To increase the people's involvement in the legislative process, civic groups should be allowed sit on House committees in charge of vetting draft bills, he said.

The people should have direct access to petition the Constitution Court to settle constitutional disputes and to launch impeachment proceedings against office holders, he said.

At the moment, their petitions must be vetted by independent organisations like the Ombudsman's Office and the National Counter Corruption Commission.

The party's proposals to rectify political flaws include making ethical violations an impeachable offence for political office-holders.

A prime minister must stand for election and should be allowed to serve no more than two four-year terms.

Censure motions should require the support of one-fifth of MPs or the endorsement of every opposition MP.

Party-list House seats should be based on 2 per cent of votes cast instead of 5 per cent.

In the event of a House dissolution, the Cabinet would expire and permanent secretaries would act as a caretaker government.

Should a snap election be called, the 90-day rule for electoral candidates' party affiliation ahead of the polls should be relaxed to 30 days.

Electoral candidates should not be required to complete tertiary education.

And, the issuing of red and yellow cards to disqualify balloting results should be scrutinised by the Supreme Court's Criminal Tribunal for Political Office Holders.