FHN17 v Minister for Immigration

The applicant, FHN17, sought constitutional writs against the Minister for Immigration and the Administrative Appeals Tribunal. The dispute concerned the Tribunal's decision to refuse a protection visa, which the applicant alleged was made without proper consideration of crucial evidence and without adequately assessing the applicant's capacity to give evidence. The matter came before His Honour Judge Wilson in the Federal Circuit Court of Australia.

The central legal issues before the Court were whether the Tribunal had failed to properly consider a neuropsychological report submitted by the applicant, and whether the Tribunal had erred in its assessment of the applicant's competence to give evidence. The applicant contended that their intellectual capacity, as indicated by the report, meant that their answers to questions beyond the most basic were likely to be unreliable, and that the Tribunal had wrongly treated them as a vulnerable witness without proper foundation.

His Honour Judge Wilson found that the Tribunal had not adequately considered the neuropsychological report and had made an erroneous conclusion regarding the applicant's competence to give evidence. The Court reasoned that the applicant's intellectual limitations, as evidenced by the report, cast doubt on the reliability of their testimony, and that the Tribunal's approach to assessing their evidence was flawed. Consequently, the Court determined that the Tribunal's decision was vitiated by jurisdictional error.

The Court ordered that a writ of certiorari issue to quash the Tribunal's decision of 30 October 2017. A writ of prohibition was ordered to restrain the Minister from acting upon that decision, and a writ of mandamus was issued requiring the Tribunal to rehear and determine the application according to law. The first respondent was ordered to pay the applicant's costs.