Peter Slipper.

Peter Slipper. Photo: Paul Rovere

Former speaker Peter Slipper says he feels vindicated by the decision to dismiss the sexual harassment case against him.

Mr Slipper - who was not in court on Wednesday - said he was said was pleased by Justice Steve Rares' decision.

"I have always maintained that Mr Ashby’s application was about manipulating the justice system to inflict damage on my reputation and political career and to advance the interests of the Liberal National Party," he said in a statement.

"In his judgement, Justice Rares said he had 'reached the firm conclusion that Mr Ashby’s predominant purpose for bringing these proceedings was to pursue a political attack' against me. I feel vindicated by today’s judgement."

Mr Slipper said that past eight months - since the allegations were first made - had been "extremely traumatic" for his wife, family and himself.

He has always maintained his innocence, but in April was forced to step aside from his role as speaker of the House of Representatives, amid claims that he had sexually harassed Mr Ashby, his former staff member, and abused his cab charge privileges.

He then resigned in October, following the publication of text messages he sent, which contained vulgar euphemisms for female genitalia and one described the Liberal frontbencher Sophie Mirabella as an ''ignorant botch''.

Mr Slipper has since sat on the crossbenches as an independent for the Sunshine Coast seat of Fisher.