Weatherall v Synapse Australian Limited

Weatherall (the applicant) brought proceedings against Synapse Australian Limited (the respondent) alleging unlawful adverse action under the *Fair Work Act 2009* (Cth). The applicant contended that the respondent had taken adverse action against him by dismissing him from his employment because he had exercised a workplace right. The proceedings were heard in the Federal Court of Australia before Judge Jarrett.

The central legal issue before the Court was whether the respondent's dismissal of the applicant constituted adverse action taken for a prohibited reason, specifically because the applicant had exercised a workplace right. This required the Court to determine if the applicant had indeed exercised a workplace right and, if so, whether that exercise was a substantial and operative reason for the dismissal.

Judge Jarrett applied the principles established in *Brereton v Duke* and *Byron v The Salvation Army* regarding the onus of proof in adverse action claims. The Court found that the applicant had established a prima facie case by demonstrating that he had exercised a workplace right and that adverse action had been taken against him. Consequently, the onus shifted to the respondent to prove that the dismissal was not motivated by the applicant's exercise of that right. The Court considered the evidence presented by both parties, including the timing of the dismissal in relation to the exercise of the workplace right, and the reasons provided by the respondent for the dismissal.

The Court ultimately found that the respondent had failed to discharge the onus of proof. Judge Jarrett concluded that the applicant's exercise of a workplace right was a substantial and operative reason for his dismissal. Accordingly, the Court ordered that the respondent had taken adverse action against the applicant and that the dismissal was unlawful.