Pressure mounts on attorney general over Palmer evidence.
Ms Davies said "bungles" by the lawyer-turned-politician were mounting and he should either step aside or be replaced.
"This attorney general continues to publicly show why some of his actions are questionable," the opposition leader told 6PR. "When you have judges passing coments like your evidence is 'all over the shop', and you're the chief law officer in the state, the premier needs to take note."
The opposition said the evidence debacle should be added to other recent controversies involving Mr Quigley.
He told parliament in August, he had no recollection of telling a journalist he would not have supported the appointment of Crown Casino royal commissioner Neville Owen had he known of the former judge's close ties to billionaire Kerry Stokes.
In fact, Mr Quigley telephoned the journalist three times to discuss his concerns only days before telling parliament the opposite.
In February, he was fined $1000 for not wearing a mask during a funeral. He also defended his decision to accept a ride in businessman John Poynton's helicopter to a Yallingup party, arguing he was acting as private citizen at the time.
"He has to be beyond reproach given his oversight of laws that govern the state," Ms Davies said.
But Mark McGowan has so far defended his colleague by talking up the reforms he's overseen since 2017.
He cited pressure and memory failure for mixing up the date on which he learned of Mr Palmer's intention to register a $30 billion claim against WA, over the long-standing dispute about the billionaire's proposed Balmoral South mine.
During courtoom discussion after the attorney general had finished correcting his previous evidence, Justice Michael Lee said he didn't believe Mr Quigley had been dishonest, but he was "all over the shop."
Even the barrister representing the premier in the case, Brett Walker SC, questioned some of Mr Quigley's evidence.
“If one were to try to logically to reconcile it, you would be utterly defeated, " Mr Walker said. "It just can’t be done. I have to say it borders on the outright silly.”
Mr McGowan is standing by the attorney general.
"He's been an outstanding attorney general with a record of reform longer than any other attorney general I've ever seen," the premier said last week. "And you've got to remember as well, he was an integral to preventing Western Australia being sued for $30 billion by Clive Palmer."