The Victorian Government has dismissed "bizarre" claims Liberal MPs and advisers were involved in a pornography-sharing ring in the Treasury Place offices.

Don Coulson, a sacked adviser to former premier Ted Baillieu, alleged MPs and advisers were using memory sticks found in his office to circulate "hardcore" sexually explicit material in the government office.

Mr Coulson said the memory sticks were circulated because government staff were forbidden from accessing pornography on government computers.

The former adviser is locked in a legal battle over his dismissal.

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Premier Denis Napthine said he was not aware of any evidence to support to Mr Coulson's "absurd" claims.

"Here we have a person who is disgruntled, disaffected because he has been dismissed for his broader behaviour," Dr Napthine said.

"On dismissal he's been found to have inappropriate material and now he's making these bizarre and absurd allegations.

"So I think they need to be seen in the context of that scenario."

Mr Coulson was sacked shortly after Mr Napthine took power over an unrelated incident and is suing the Government for wrongful dismissal.

But the Government is counter-suing, alleging Mr Coulson should pay back his severance package because government staffers found the pornography in his office.

Mr Coulson acknowledged the memory sticks were in his office but denied ever accessing the material.

"In order to avoid breaching the codes of conduct certain material was physically handed around and I believe that material was found in my office," Mr Coulson said.

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"The material was found in my office because everyone had access to my office."

Mr Coulson said the content was "hardcore" pornography.

But he said he did not think the swapping of sexually explicit material in a government office was inappropriate, "provided it's not done officially and provided it's not utilising government resources".

"If you become an elected official you don't become celibate," he added.

Mr Coulson would not reveal the names of the government staff involved in the swapping of pornography.

Planning Minister Matthew Guy questioned the timing of the claims.

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"These are simply allegations by one person. They've never been raised at any forum, any time before," he said.

"These are allegations by a person who lost his job in Treasury Place."

But Deputy Opposition Leader James Merlino said he wanted an explanation in Parliament.

"Denis Napthine must give a full and frank explanation to the Parliament today about allegations of a Liberal minister, Liberal MPs and the Premier's own staff were involved in a vile pornographic ring," he said.