Qld premier didn't know of ex-con staffer

Queensland's premier says she knew nothing about the background of an ex-convict who briefly worked for former police minister Jo-Ann Miller.

The state's opposition has this week been pursuing the government in parliament over what it knew about the unnamed woman, who briefly worked for Ms Miller last year despite being jailed over 263 fraud convictions.

"At no time during the employment process did myself or my office know about this person's criminal background," Premier Annastacia Palaszczuk told parliament on Wednesday.

Ms Palaszczuk said the woman was employed by Ms Miller's office for less than three months.

"I am advised that during that period a third-hand report of inappropriate behaviour by this person at a local pub was made to a member of my staff who reported it immediately to my chief-of-staff," she said.

The premier said the employee was counselled about proper standards of behaviour and was sacked soon after.

She accused the opposition of "muckraking" and attacking a lowly A03-level employee - a category that earns roughly $55,000-65,000 a year.

Ms Miller, who now sits on the backbench, also leapt to the Labor government's defence, saying she was unaware of the employee's criminal history as well.

"The person had been employed in the state government call centre and she had also gone through ... a merit-selection process," Ms Miller said.

She also suggested the opposition could be breaching the state's Rehabilitation of Offenders Act by discussing the staffer's offences.

Deputy Opposition Leader John-Paul Langbroek earlier criticised Ms Palaszczuk for not knowing about the staffer's background, given she was required to sign off on all appointments.

"Does the premier actually know anything about anything?" Mr Langbroek said.