British American Tobacco Australia Ltd v Gordon

British American Tobacco Australia Ltd was a party in a proceeding before the Federal Court, with Gordon as the respondent. The primary dispute involved the disqualification of a judge due to an apprehended bias arising from a prior professional relationship between the judge and Gordon. The case reached the High Court, which was tasked with determining several legal issues pertinent to the disqualification of a judge on the grounds of apprehended bias.

The central legal issues that the High Court had to address were whether a prior professional relationship between a lawyer and a client, which continues into the judge's tenure, could disqualify the judge from hearing cases involving the former client, and whether the reasonable apprehension of prejudgment on a particular issue is sufficient grounds for disqualification, even if that issue will not be directly addressed in the interlocutory applications. The Court also considered whether the judge's potential predisposition towards a specific issue due to their prior involvement, or the influence of privileged material previously briefed, constituted a disqualifying bias.

The High Court ruled that a prior professional relationship between a lawyer and a client does not inherently disqualify a judge from hearing cases involving the former client. Furthermore, the Court held that a reasonable apprehension of bias based on the judge's potential predisposition to a specific issue, or the influence of privileged material, does not automatically result in disqualification. The Court clarified that such apprehension of bias does not disqualify a judge from hearing interlocutory applications where the issue in question will not be directly addressed. The reasoning underscored the importance of the specific circumstances and the nature of the potential bias in determining the judge's disqualification.

The final orders of the Court affirmed the principles regarding the grounds for disqualification based on apprehended bias, emphasizing that not all prior professional relationships or apprehensions of prejudgment are sufficient to disqualify a judge from presiding over a case.