Sall Grover is bringing her High Court fight to Brisbane. The woman ordered to pay $20,000 for keeping a biological male off her women only app headlines the Fix the Act rally at Queens Gardens from 10.30am on Sunday 12 July, demanding the word “woman” be written back into federal law.

The rally is hosted by Women's Rights Brisbane under the banner “Reclaim Our Rights. Fix the Act. A rally for sex based rights”, and the flyer asks the crowd to gather from 10am. Alongside Ms Grover, One Nation senator Malcolm Roberts and psychiatrist Dr Jillian Spencer are billed to speak. Greens co-founder Drew Hutton completes the lineup.

The organisers' pitch for turning up is printed on the poster: “Be heard. Be counted. Our rights. Our spaces. Our future.” After Melbourne and Perth filled streets on the same Saturday, Brisbane is the campaign's biggest stage yet, and it lands while both of the cases driving the movement are still in front of the courts.

Image: Sall Grover, via X. The Fix the Act rally poster for Queens Gardens, Brisbane, from 10am this Sunday 12 July.

What the rally actually wants: the definitions Julia Gillard deleted in 2013

Every speaker on that flyer is there because of one amendment. In 2013, in the final days of the Gillard government, Parliament removed the definitions of "man" and "woman" from the Sex Discrimination Act and added gender identity as a protected attribute. Australian courts now read the Act as no longer confining sex to biology. Confronted at Manchester University last week, Ms Gillard defended the change as the product of "a different time".

The campaign wants those definitions restored. One Nation's Pauline Hanson has a bill before the Senate to do it, and Nationals MP Alison Penfold has a private member's bill to the same effect. Neither has passed.

Image: @MrMennoTweets, via X. Julia Gillard walks past protesters holding "I Stand With Sall Grover" sign in London.

Sall Grover and Kirralie Smith, the two women the campaign is built around

Ms Grover is the reason the rallies exist. Her women only app Giggle for Girls removed Roxanne Tickle, who was born male and identifies as a woman, and because the amended Act no longer defines "woman" the Federal Court found that unlawful. In May the Full Federal Court upheld the finding and doubled the damages to $20,000. She's now seeking special leave to appeal to the High Court of Australia.

The other name driving the movement is Kirralie Smith, who told the Melbourne rally on Saturday she still hasn't paid the $95,000 she was ordered to pay after a NSW court found she unlawfully vilified two transgender soccer players. Her appeal is before the NSW Supreme Court.

Image: Kirralie Smith, via X. Kirralie Smith and Sall Grover together outside Parliament House in Canberra.

Melbourne and Perth went first, and the streets were the story

Brisbane follows twin rallies held on Saturday 4 July. In Melbourne, women rallied on the Victorian Parliament steps while a trans rights counter protest, which police kept behind lines several deep, gathered metres away. In Perth, marchers moved through the CBD behind a placard reading "Julia Gillard, you failed women". Adelaide is flagged for 25 July.

Image: Kirralie Smith and @juanita30622990, via X. A Single-Sex Spaces Matter placard, Binary Australia spokeswoman Kirralie Smith, and the police line separating the rally from counter protesters outside Parliament.

The banner protesters have chased Ms Gillard across Britain under calls her the “Destroyer of Women's Rights”. The Brisbane flyer makes the same point in gentler words. Australia's first female prime minister removed the word from the law. On 12 July, her own country starts asking for it back, loudly.