CANBERRA — The Australian Human Rights Commission (AHRC) faced intense scrutiny during a Senate Estimates session on Tuesday, 26 May, as Coalition senators challenged the body over the legal definition of a woman and the protection of single-sex spaces.
Shadow attorney-general Michaelia Cash led the questioning, pressing AHRC president Hugh de Kretser for a clear definition of a woman. Mr. De Kretser stated that a woman is “an adult human female” but added that the term “includes a transgender woman.” This response prompted Senator Cash to demand clarification on how an adult human female could simultaneously be a transgender woman.
The debate centered on the implications of the federal court’s Giggle v Tickle judgment from August 2024. In that case, the court found that transgender woman Roxanne Tickle had been indirectly discriminated against under the Sex Discrimination Act after being excluded from Giggle, a social media app for women. Senator Cash argued that this ruling demonstrates that the current law fails to adequately protect single-sex spaces, stating, “The law that was meant to protect women is now being used against them.”
The hearing also revisited the Commission’s handling of the Lesbian Action Group (LAG), which had sought an exemption to the Sex Discrimination Act to hold events exclusively for women born female. While the Commission initially rejected the request, the Federal Court later set aside a tribunal decision that had dismissed the group’s appeal. When asked about their personal votes on the matter, Sex Discrimination Commissioner Anna Cody confirmed she voted against the exemption, while Human Rights Commissioner Lorraine Finlay stated she had voted in favor but was overruled.
A contentious exchange occurred regarding pregnancy protections. Dr. Cody conceded that a biological male cannot become pregnant but argued that the Sex Discrimination Act’s protections could still apply to a transgender woman based on potential pregnancy. Senator Cash labeled the situation “chaos,” asserting that such interpretations insult women who face biological discrimination.
Senator Sarah Henderson further challenged the Commission by citing the example of a women’s refuge that was unable to legally exclude individuals who identified as women from its premises after hours, despite safety concerns. When Mr. De Kretser suggested the refuge contact the AHRC for assistance, Senator Henderson argued the Commission had already caused “immense harm.”
Implications and Potential Future Developments

The session highlighted a deep divide regarding the intersection of gender identity and existing discrimination laws. Senator Cash signaled that a future Coalition government may seek to amend the Sex Discrimination Act to define biological sex specifically as the sex a person was assigned at birth. If such legislative changes were to be proposed, they would likely spark significant parliamentary debate over the balance between gender identity rights and the maintenance of sex-segregated environments.
As the legal landscape continues to evolve following the Giggle v Tickle precedent, further judicial or legislative intervention may be required to resolve the conflicting interpretations of the Sex Discrimination Act. Observers may expect continued friction between policymakers and human rights officials as the government navigates the practical consequences for shelters, sports, and other spaces historically reserved for biological women.
