The Australian Federal Police (AFP) have sought access to computer servers at Parliament House as part of their investigation into the downfall of former speaker Peter Slipper.

The AFP has confirmed it has been conducting enquiries with the Department of Parliamentary Services.

The Department runs Parliament House and its computer servers hold the emails of Federal MPs.

The AFP told the ABC the investigations were in relation to an ongoing investigation — but did not specify which one.

The ABC understands the AFP sought access to the parliamentary servers as part of their inquiry into the role Liberal MP Mal Brough played in procuring Mr Slipper's diary.

In an earlier statement, a spokesperson for the AFP confirmed officers have not raided a politician's office in the past fortnight.

It also ruled out having seized material under search warrant from the Parliamentary Offices of a federal politician "in the past two weeks".

But it did not say if it had accessed the parliamentary computer system.

Mr Brough said there had been no raids on his Parliament House office.

In a statement, Mr Brough said "rumours are circulating through Parliament House that the AFP have raided my Parliament House Office".

"These rumours are completely false," he said.

Mr Brough said that the AFP has not sought any "additional assistance in any way" from him since January 7.

Shadow attorney-general Mark Dreyfus questioned Speaker Tony Smith on the police enquiries following Question Time, but Mr Smith refused to be drawn.

He instead referred to the guidelines put in place regarding parliamentary privilege, which requires police to seek permission to enter Parliament House.

"Members would be aware that Australian Federal Police has a national guideline for executive of search warrants where parliamentary privilege may be involved, which has been agreed between the minister responsible for the Australian Federal Police and the presiding officers," he said.

"Any process for the execution of search warrants in circumstances where parliamentary privilege may be involved would only be done in accordance with the principles of that guideline, to ensure that parliamentary privilege is protected."