'No evidence of criminal act': AFP will not investigate disclosure of Abbott's location

The Australian Federal Police says it will not investigate the disclosure of Opposition Leader Tony Abbott's location before the Australia Day tent embassy protest, despite an official request by the federal opposition.

The AFP said in a statement that "no evidence of a criminal act was identified".

It added that it had an ongoing investigation into the actions of the protesters outside the Canberra restaurant, which commenced on Friday.

"The AFP can confirm it became aware of information concerning the alleged disclosure of information on the location of the Leader of the Federal Opposition, Mr Tony Abbott, during Australia Day," an AFP spokeswoman told AAP in a statement.

"The AFP subsequently evaluated the information and no evidence of a criminal act was identified.

"As such, the AFP is not conducting an investigation."

Since the event, differing accounts have emerged of what sparked the protest and how those at the tent embassy in Canberra came to hear of Mr Abbott's whereabouts.

One of Prime Minister Julia Gillard's media advisers resigned after admitting he told an official from Unions ACT of Mr Abbott's attendance at an awards ceremony at a restaurant near the tent embassy.

The information was passed on to members of the tent embassy who staged an angry protest, sparking what the opposition said was the worst political security breach in 30 years.

"The whole thing has become so murky the only way to get to the bottom of exactly what happened and why and who was responsible is for the Australian Federal Police to investigate it," opposition frontbencher Christopher Pyne told ABC Radio today.

"We expect the Prime Minister to do the right thing and if she doesn't then we'll consider our own options."

Mr Pyne would not be drawn on whether the opposition would use the incident as the basis of a no-confidence motion in the Prime Minister when Parliament resumes next week.

AAP with smh.com.au