Firebrand MP Mark Latham has called for the legal system to be changed after his ex-girlfriend cited a sustained pattern of alleged abuse in her application for a protection order before a court.

Natalie May Matthews, 38, has applied for a private apprehended violence order to protect her from the one-time federal Labor opposition leader whom she has accused of years of manipulation.

Mr Latham, who now sits as an independent in the NSW upper house, vigorously rejects her allegations.

He has not been charged with any criminal wrongdoing.

The MP, who is also an ex-NSW One Nation leader, and his former partner didn't interact as they sat on opposite sides of a courtroom in the Downing Centre Local Court in Sydney on Wednesday.

Mr Latham's silence didn't last long as he fronted the media

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