Background
Brenden Mullaney, a long-serving stevedore for Qube Ports, was terminated after his employer concluded he could not safely perform the “inherent requirements” of his job. Following earlier workplace injuries, Mr. Mullaney had worked for an extended period on restricted duties. When his treating doctor certified him fit to resume all duties, he was assigned “lashing work” but objected, stating he no longer had the skills to perform it.
In response, Qube directed Mr. Mullaney to an occupational physician for an independent assessment. Based on that assessment and a subsequent review, Qube determined Mr. Mullaney could not safely perform his duties and terminated his employment. Mr. Mullaney sued under the Disability Discrimination Act 1992 (Cth), alleging that Qube had wrongfully “imputed” a disability to him and dismissed him because of it. A primary judge heard the case and dismissed his claim, prompting Mr. Mullaney to appeal.
The Court’s Holding
The Federal Court of Australia dismissed Mr. Mullaney’s appeal, affirming the lower court’s decision. Justice Lee found no legal error in the primary judge’s reasoning, which turned on the specific way Mr. Mullaney’s lawyers had framed the imputed disability during the initial trial. The Court held that the dismissal was not discriminatory because it was based on an inability to perform the job’s requirements, not on the imputed physical condition itself.
The critical factor was that at trial, Mr. Mullaney’s lawyers had defined the imputed disability as “degenerative changes to his back, shoulders and knees which prevented him from performing the occupational requirements of his role.” This formulation bundled the physical condition with its alleged consequence. Therefore, to determine if the treatment was discriminatory, the primary judge had to compare Qube’s treatment of Mr. Mullaney with its treatment of a hypothetical employee (a “comparator”) without that disability but in otherwise similar circumstances.
The Court agreed that the correct comparator was another employee who was also unable to perform the occupational requirements of the role, but for reasons other than the imputed degenerative conditions. Because Qube presented evidence that it would have terminated any employee who could not perform the role’s essential duties, the Court concluded Mr. Mullaney had not been treated “less favourably.” The reason for dismissal was the inability to do the job—an element that Mr. Mullaney’s own case had tied to the definition of the disability.
Key Takeaways
- The precise legal formulation of an “imputed disability” is critical and can determine the outcome of a discrimination claim.
- When a disability is defined at trial to include a specific functional incapacity (e.g., an inability to perform job requirements), that incapacity may be retained in the hypothetical comparator, making it difficult to prove less favourable treatment.
- This decision shows that courts are reluctant to allow parties to change their core legal arguments on appeal, especially when a strategic choice was made at trial.
Why It Matters
This decision is a significant cautionary tale for employment lawyers. It demonstrates that how an alleged disability is defined at trial has profound strategic implications for the comparator analysis required under Australian discrimination law. In cases where a disability is “imputed” by the employer, plaintiffs must be careful not to conflate the imputed condition with its practical consequences.
While the law maintains separate inquiries for whether discrimination occurred and whether an employee can perform a job’s “inherent requirements,” this ruling shows how a tactical decision in framing the claim can cause those inquiries to collapse. It reinforces that a case can be won or lost based on the specific wording chosen to define the disability at the outset.