Re Ash (No 4)

The Federal Circuit and Family Court of Australia presided over a case involving a dispute between Parent B and Parent C concerning parental responsibility for their children, Ash and Lee. The primary issue was whether Parent B should be granted sole parental responsibility for Ash, specifically to authorise stage 2 hormone treatment for Ash's gender dysphoria, a request opposed by Parent C. The dispute arose amidst a backdrop of the children's religious upbringing, which Parent C continued to adhere to while Parent B had distanced themselves from it. Ash, diagnosed with gender dysphoria, had expressed a desire to commence testosterone treatment to align with their gender identity, a request Parent C had previously denied. The court had to determine whether the risks associated with the hormone treatment were significant enough to warrant withholding consent and whether it was in Ash's best interests for Parent B to have sole responsibility for making such medical decisions.

The court examined various pieces of evidence, including published standards of care, government policies, expert reports, and academic articles. It found that the administration of testosterone to Ash constituted a therapeutic treatment for gender dysphoria, aligning with the diagnostic criteria outlined in the DSM 5 TR. The court noted that the risks associated with the treatment, while present, were not deemed unacceptable and did not outweigh the benefits for Ash. The court concluded that it was in Ash's best interests for Parent B to have sole parental responsibility for decisions regarding Ash's medical treatment, including the administration of testosterone. This decision was supported by the State Government policy, the Endocrine Society Clinical Practice Guideline, and the RANZCP Position Statement 103, all of which emphasised the importance of multidisciplinary gender-affirming care and the need for trained clinicians to assess and support gender-dysphoric individuals.

The court granted Parent B sole parental responsibility for Ash, including the authority to consent to stage 2 hormone treatment for Ash's gender dysphoria. The court also approved a name change for Ash from "Casey Morgan-Tyler" to "Ash Morgan-Tyler" and ordered that the change be registered and reflected on Ash's Australian Citizenship Certificate. Additionally, the court mandated that both parents notify each other of any major long-term decisions regarding the children and maintain open communication regarding their contact information and travel plans. The court emphasised the importance of protecting the children's privacy and restricting access to the court file, with non-publication orders in place until 1 January 2029. The Independent Children's Lawyer was discharged, and all other applications were dismissed.