Ahern v Aon Risk Services Australia Limited

The case of Ahern v Aon Risk Services Australia Limited involved a dispute between the plaintiff and the defendant regarding the assessment of costs awarded in the plaintiff’s favour. The case was heard in the Federal Court of Australia. The plaintiff sought a review of the costs assessment made by the costs review panel, arguing that the panel’s decision lacked adequate reasoning and did not adequately address the selection of hourly rates for different members of the plaintiff’s legal team. The plaintiff also argued that the panel’s approach to determining negotiation and assessment costs was flawed.

The primary legal issue before the court was whether the costs review panel’s failure to provide adequate reasons for its decisions constituted a decision on a matter of law, thereby founding a right to appeal. Additionally, the court needed to determine the appropriate approach to assessing costs, particularly in relation to the selection of hourly rates for different members of the plaintiff’s legal team and the relevance of the concept of proportionality in this context. The court also had to consider the proper method of determining negotiation and assessment costs.

The court found that the costs review panel’s failure to provide adequate reasons for its decisions did not amount to a decision on a matter of law. The court held that the panel’s decision-making process did not require detailed reasons, as long as the panel had considered the relevant factors and exercised its discretion reasonably. Regarding the selection of hourly rates, the court held that the panel should have considered the concept of proportionality in determining appropriate rates for different members of the plaintiff’s legal team. The court also outlined the correct approach to determining negotiation and assessment costs, emphasising that these costs should be reasonable and proportionate to the work undertaken.

The court ordered that the matter be remitted to the costs review panel for reconsideration in light of the court’s findings. The panel was directed to provide detailed reasons for its decisions, to consider the concept of proportionality in setting hourly rates, and to apply the correct approach in determining negotiation and assessment costs. The parties were to bear their own costs of the appeal.