The acting chair of the Crime and Corruption Commission was due to finish up his role on October 31, but the bunfight over the government's pick to replace him has resulted in Dr Levy's appointment being once again extended.

Attorney-General Jarrod Bleijie said the government was left with no choice after the Parliamentary Crime and Corruption Committee rejected Paul Favell as the nominee to replace Dr Levy for the second time.

"No reasons were provided as to why the committee had taken the decision it did," Mr Bleijie told parliament.

"While this may seem to be little more than a debating point, it goes to the very heart of the task of contributing to a stable and effective Crime and Corruption Commission."

Mr Bleijie said he was "at a loss" to explain why Mr Favell was rejected by the committee.

"...I note Mr Favell's nomination has proceeded through a transparent recruitment process in response to public advertising in the local and national press," he said.

"This contrasts with the situation that occurred for the three appointments in 2004, 2009, and 2011 when the successful applicants were not identified through a similarly public process.

"Should the government decide to proceed with Mr Favell's nomination or select another candidate no clue has been provided as to the qualities that would meet the committee's requirements.

"I am at a loss to understand what additional qualities above and beyond those demonstrated by Mr Favell's extensive curriculum vitae [that] he, or any alternative nominee, would have to demonstrate to receive the bipartisan support of the committee.

"The government believes that Mr Favell possesses the qualities required of the leader of the state's primary serious crime and corruption fighting body.

"Mr Favell is a practitioner of unimpeachable integrity and reputation having been admitted to the Queensland bar in 1980. Mr Favell is a sessional member of QCAT, a nationally accredited mediator and has practised in all significant jurisdictions from the High Court down.

"Of even more practical interest is the fact that, since 2011, Mr Favell has been engaged as the Parliamentary Crime and Corruption Commissioner or its predecessor."

Extending Dr Levy and the other commissioner's time at the CCC was the only way to retain public confidence in the institution, Mr Bleijie said.

"There is no surer way of damaging public confidence in the CCC than to leave it leaderless.," he said.

"Stability is vital and, following the traumas of the then CMC's own making last year, one measure of stability is the presence of a leadership team able to take the organisation forward.

"In light of events over the past 48 hours, and to ensure the stability of the CCC the government has recommended the continuing appointment in an acting capacity of Dr Ken Levy as Chairman, Ms Diane McFarlane as Acting CEO until such time as the positions can be permanently filled.

"The Government has also recommended the permanent appointment of Mr Syd Williams QC as Deputy Chairman."

The first extension of Dr Levy's appointment is what caused the original friction between the Opposition and the Government and eventually led to the PCCC being sacked.

An investigation into whether Dr Levy deliberately misled the committee is ongoing.