The Liberals' decimation at the state election means they will struggle to find enough MPs to sit on parliamentary committees, making it harder to scrutinise the Labor Government, analysts have said.

"In the last 10, 20, 30 years committee work has become a major feature of the activities of Parliament and it's under some threat and pressure because of the one-sided nature of the recent election," parliamentary fellow in the Legislative Assembly Committee Office Professor David Black said.

Labor will hold 41 seats in the new Parliament's Legislative Assembly, while the Liberals will have only 13 and the Nationals five.

The opposition leader and deputy do not normally sit on committees, which could leave the Liberals with 11 MPs to contribute to four standing committees, two joint standing committees and any select committees.

Liberals unlikely to chair any committees

In the Legislative Council, the ABC election computer estimates there will be 10 Liberal MPs. In the previous parliament there were seven Upper House committees.

Liberal MP Ian Blayney just survived a 21.5 per cent swing against him. ( ABC News: Chris Lewis )

In that parliament, Labor chaired and had the majority of MPs in one Lower House committee, and a Labor MP also chaired an Upper House committee.

Professor Black said Legislative Assembly Committee Office staff had told him it was unlikely any standing committees would be chaired by an Opposition MP.

"They said to me, 'Well, the probability is low because the losing side in the election simply won't have the numbers to do that'," Professor Black said.

"So in other words it will take all their resources to simply provide members to serve on committees, let alone the additional task of actually being the chair

"So, there's not the slightest doubt this will impact on the functioning of the standing committee system."

He said it was a genuine issue for how well parliament functions in overseeing the activities of government.

"It is a much more healthy parliamentary situation, you get much more effective [at] investigating what's going in if your committees are reasonably balanced between government and opposition," he said.

Good government needs good opposition

Liberal MP for Geraldton Ian Blayney, who just survived a 21.5 per cent swing against him, chaired the Economics and Industry Standing Committee in the last parliament.

He said Opposition MPs, who will already have heavy portfolio workloads, will need to be prepared to hand down minority reports.

"It could well be that the committees will be all dominated by Government MPs because there literally aren't enough bodies to fill them up," Mr Blayney said.

"You never get good government, unless you get good opposition."

In the Upper House, where Labor will not have the controlling numbers, there are likely to be some committees controlled by a combination of Liberals, Nationals and cross-benchers.

Analyst Martin Drum says the committee process will be tested. ( ABC News: Andrew O'Connor )

Notre Dame politics lecturer Martin Drum said it would be up to Labor MPs to also uphold the committee processes and ensure proper scrutiny.

"One of the challenges is holding the executive to account so it's still very important that parliamentary committees are still independent of government," Dr Drum said.

"The onus will still be on backbench MPs to be critical of government where that criticism is warranted. So that will be quite a bit of a test for our committee process."