Opposition Leader Tony Abbott says he has not read the week-old judgment of the Peter Slipper case because he has been doing "very important things for the people of Australia" in Britain.

Last Wednesday, Federal Court Justice Steven Rares dismissed a sexual harassment claim by Mr Slipper's former staffer, James Ashby, saying the matter was an abuse of process with the main purpose of pursuing "a political attack" on the member for the Queensland seat of Fisher.

"I look forward to having Mal as a colleague of mine again" ... Tony Abbott. Credit:John Woudstra

Justice Rares also found Mr Ashby acted "in combination" with another staffer, Karen Doane, and Mal Brough to advance the interests of the former Howard government minister and the Queensland Liberal National Party.

But speaking overnight from London, Mr Abbott told the ABC TV that he had not read the judgment, explaining he had been doing "very important things for the people of Australia, here in this country right now".