Brittany Higgins addresses March 4 Justice rally as women demand action across Australia

Former Liberal staffer and Grace Tame among those to address tens of thousands of protesters calling for an end to gender-based violence

Brittany Higgins' voice shook as she addressed the crowd outside Parliament House in Canberra.

She had decided at the last minute to speak to more than a thousand people, mainly women, holding signs calling for justice for women, for sexual assault survivors and for Higgins herself, who has alleged she was raped by a colleague inside Parliament House.