Pauline Hanson has drawn clear battlelines for the WA state election, opposing key Liberal and Nationals policies including the privatisation of Western Power and the iron ore mining tax.

Ms Hanson, who is in Perth to select candidates for the election in March, said One Nation would not back policies that hurt ordinary people.

"It's been proven fact that when you sell your essential services like your gas, your water, your electricity, your telecommunications, it's a rising cost to Australians and the average household out there cannot afford it anymore," she said.

One Nation will also oppose the $5 a tonne mining tax being proposed by WA Nationals leader Brendon Grylls.

Under that plan, BHP Billiton and Rio Tinto would be slugged with the tax which is expected to raise $7.2 billion over four years.

Ms Hanson said people in WA wanted and needed a strong mining sector and did not support the tax.

Culleton rift a shame: Hanson

The One Nation leader arrived just 24 hours after former One Nation senator Rod Culleton made headlines for his court appearance in bankruptcy proceedings.

Ms Hanson acknowledged the Culleton affair was unfortunate, but said it did not reflect badly on the party in WA.

"It's a shame and I'm so sorry that this has actually happened in WA … but it doesn't stop me or my other senators from doing our job representing our constituents," she said.

She said if Senator Culleton was ruled ineligible by either the High Court or through bankruptcy proceedings, One Nation would seek to retain the Senate position and nominate a West Australian to fill the vacancy.

One Nation has yet to decide how many candidates it will field or which seats it will contest in the state election.

But Ms Hanson said at a federal level, One Nation was focused on connecting with ordinary people and getting results.

"I'm getting a lot of feedback that people are saying she listens, she cares about us, she cares about Australia," she said.

"That's what I want to carry through with my candidates in this state."

One Nation will poll well: Premier

Premier Colin Barnett has acknowledged One Nation is likely to poll strongly in some areas, particularly parts of regional WA.

But he said One Nation would have to work to select candidates of better calibre.

Premier Colin Barnett says candidate selection will be important for One Nation. ( ABC News: Andrew O'Connor )

"They will be a factor in the election campaign, particularly in country seats, but they haven't done too well on their senator, have they, from Western Australia, so we'll see what happens," he said.

The Liberal Party has yet to finalise preference deals ahead of the election, but Mr Barnett maintains Liberal Party preferences will not be allocated in most seats, and therefore would not play a role in electing One Nation candidates.

Mr Barnett said it would come down to those casting their vote on polling day.

"Well, look it's up to the electors of Western Australia. We did have three One Nation members elected some time ago and the party basically fell apart. None of them are there now today but look that's not my main concern. You need to go and talk to Pauline Hanson," he said.