The committee in charge of Queensland's Crime and Misconduct Commission (CMC) says there has been a "cataclysmic failure" and widespread "corporate amnesia" in the anti-corruption body.
The Parliamentary Crime and Misconduct Committee (PCMC) is investigating the CMCs mistaken release and destruction of documents from the Fitzgerald inquiry into police corruption.
It has heard evidence from CMC staff about how sensitive documents were mistakenly made available for public viewing at the Queensland State Archives.
The PCMC has heard there was confusion about the classification of documents and no knowledge by staff of what they were releasing.
PCMC chairwoman Liz Cunningham has told the CMC's acting chairman, Warren Strange, the commission's staff have been evasive and have kept poor records.
Ms Cunningham says the staff all seem to have lost their memories of how the mistake occurred.
"The note-taking, the record-keeping and the memory is appalling," she said.
"If what we've heard today is the way the CMC operates, and if the ability to recall information and experience is as poor as has been replicated in these hearings, you are in so much trouble.
"We have seen this procession of people who 'can't remember, I don't recall, that is not my recollection'.
"We've been doing it for a week-and-a-half and if there's something in the water down there, you need to get it fixed."
PCMC member Peter Dowling likened the memory lapses to TV comedy show Hogan's Heroes.
"The Sergeant Schulz defence - 'I see nothing, I hear nothing' - unbelievable," he said.