McKenzie v Day (No 1)

The case of McKenzie v Day (No 1) arose from an application by the plaintiff, McKenzie, to the Supreme Court of Queensland seeking permission to adduce an expert report in support of their claim. The plaintiff alleged that they had suffered injuries due to the defendant's alleged failure to provide adequate warning or instructions regarding the use of a staircase in their premises. The expert in question, a safety and risk management advisor, provided an opinion that the steps of the staircase were "camouflaged," suggesting a lack of visual contrast that might mislead users. The defendant, Day, contested the admissibility of the expert's opinion, arguing that the term "camouflaged" was inappropriate and that the expert's expertise did not extend to commenting on the need for contrasting colours.

The court had to determine whether the expert's opinion on the "camouflage" of the staircase steps was relevant and admissible. It also needed to assess if it was within the expert's expertise to comment on the necessity of contrasting colours to highlight different surfaces, and if the term "camouflage" was appropriate in this context. The court considered the qualifications and experience of the expert, the relevance of their opinion to the issues in the case, and the appropriateness of the terminology used. The court found that while the expert's overall qualifications were sufficient, the term "camouflaged" was indeed inappropriate. However, the court allowed the expert's opinion on the need for contrasting colours to be admitted as it fell within the expert's expertise and was relevant to the issues at hand.

The court concluded that the application to adduce expert evidence would be allowed in part, permitting the expert to provide evidence on the need for contrasting colours but disallowing the use of the term "camouflaged." This decision ensured that the plaintiff could present relevant expert evidence while maintaining the technical accuracy and appropriateness of the expert's terminology. The court's ruling balanced the need for expert opinion in assessing safety risks with the importance of precise and accurate expert language.