A sex industry expert says CCTV footage which Craig Thomson claims could clear him of allegations he visited brothels probably does not exist.

In an hour-long speech to Parliament yesterday, Mr Thomson again rejected a Fair Work Australia finding that he spent union money on prostitutes and his election campaign.

And he said he had repeatedly called for footage from the six Sydney brothels he is alleged to have visited to be made public.

"What is interesting is that we've been informed that at these types of establishments they have to keep film footage of people who go in and out for six years in New South Wales," he said.

"I raised two years ago this issue with Fair Work Australia and said get the footage. Get the footage. See who was there on those days."

But Chris Seage, who runs sex industry consulting firm Brothel Busters, says brothels in Sydney are only regulated by local council planning laws and only a small per cent have CCTV - let alone keep tapes of clients.

"When [Mr Thomson] said 'Get the tapes, get the tapes', both my wife and I were rolling around on the floor laughing," said Mr Seage, who is a previous consultant to the Adult Business Association in New South Wales, which represents some of the country's biggest bordellos.

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"I'd say only at the most 5 per cent of brothels would have CCTV, and in terms of how long they would be kept, nowhere near six years.

"I think it’s a false allegation."

In his speech, Mr Thomson also told the Parliament that Fair Work Australia was biased and that it only ever interviewed him once – in September 2010.

But the FWA report reveals it sent him numerous letters and emails with follow-up questions.

And eventually, a year later in September 2011, Mr Thomson replied via email that he had "been advised by my lawyers to decline the opportunity to respond to your specific questions".

Calls for debate

Whether or not Mr Thomson has given an honest account of all he has been accused of is something many MPs are now considering.

Independent MP Rob Oakeshott says there should be a parliamentary debate and either Mr Thomson or Fair Work Australia have a case to answer.

"Either Craig has got it wrong, and he's pretty quickly going to go out the back door based on misleading the Parliament, or we've got some pretty substantial allegations right back at Fair Work Australia," Mr Oakeshott said.

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This morning Prime Minister Julia Gillard was questioned about the Thomson affair by reporters on the sidelines of the NATO summit in Chicago.

Ms Gillard said she still believed she made the right decision in suspending Mr Thomson from Labor Caucus.

"As for the specifics involving Mr Thomson, I have said consistently these will be deal with by an appropriate court at the proper time," she said.

"Mr Thomson denies these allegations, he's entitled to his day in court, and ultimately he will have it."

Interviewed on AM this morning, Labor's Leader of the House Anthony Albanese would not say whether the Government would agree to Mr Oakeshott's call for a debate.

"Let's be clear about Mr Oakeshott's position. What he's talking about is a debate about process, not a debate about the substance of the allegations against Mr Thomson - he's made that very clear and that's an important distinction."

And he repeated Ms Gillard's call for the allegations to be tested in the courts.

"[Mr Thomson] gave a very comprehensive explanation to the Parliament yesterday," he said.

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"It's not up to me to judge. What's important is that you have now the Fair Work Australia report, you've got Mr Thomson's response in the Parliament.

"It's important that that be tested in the courts, not on the floor of the House of Representatives in a partisan way."

But Opposition Leader Tony Abbott said Mr Thomson's explanation did not address the questions it needed to, and backed the call for Parliament to be given the opportunity to respond.

"We have had Mr Thomson's frankly utterly implausible statement in the Parliament yesterday and the Government won't let us debate it," he said.

"Mr Thomson had one hour in the Parliament yesterday and the Opposition wasn't given one minute to respond."

Fair Work Australia says it will not be responding to Mr Thomson's speech.