The case had impacts beyond Australia, it was for example cited in the 2002 decisions of "Goodwin vs. United Kingdom in the European Court of Human Rights" and the 2003 decision "Circuit Court of the Sixth Judicial Circuit In And For Pasco County, Florida in the United States of America in The Marriage of Kantaras case number 98-5375CA 511998DR00537WS".
The Attorney General affirmed that Kevin and his wife (alias Jennifer) were not legally able to get married as they had both been assigned the sex female at birth.
The judge in this trial (Chisholm J) determined that measure to be insufficient, as it ignored the role of social and psychological aspects of gender.
Kevin and the Human Rights and Equal Opportunity Commission brought forth evidence to counter this.
Kevin had, at the time of his marriage, had surgeries to remove both primary and secondary female sexual characteristics, as well as hormone therapy.
After these surgeries, Kevin had applied to the Registrar of Births, Deaths, and Marriages to have his sex legally changed.
In court, the Judge heard from a total of four doctors and thirty nine other witnesses (twenty three of which were family or friends of Kevin, and sixteen of which were his colleagues).
Ultimately he decided to overrule Corbett, coming to the decision that marriage is not purely sexual, and that the ability to bear children isn't required.
Australia had never seen a decision that affirmed the rights of transsexual and transgender people to marry as the sex/gender they identify as.