People v State of Queensland (No 3)

In the case of People v State of Queensland (No 3), the applicant sought to introduce anthropological evidence in relation to a native title claim by the Western Kangoulu people. The State of Queensland contested the admissibility of certain evidence, specifically the opinions of other anthropologists not called as witnesses and additional materials prepared by these anthropologists. The matter was heard by the Federal Court of Australia, which had to determine the legal issues concerning the admissibility of expert opinion evidence and the application of the rules of evidence in this context.

The primary legal issues the court had to decide involved the principles governing the admissibility of expert opinion evidence under the Evidence Act 1995 (Cth), particularly in relation to whether an expert could rely on the opinions of other experts who were not called as witnesses. The court also had to consider whether the additional materials prepared by these other anthropologists were admissible to establish the foundation of the expert's opinion or to demonstrate that the expert's opinion was in harmony with the opinions of other experts. Additionally, the court needed to determine whether it was appropriate to dispense with the rules of evidence in this instance.

The court held that while the Joint Statements were admissible in so far as they served as a foundation for the opinions expressed by Dr Martin in his reports, the additional materials prepared by other anthropologists were not admissible. The court found that these materials were hearsay and could not be used to show that Dr Martin's opinion was in harmony with the opinions of other experts. Furthermore, the court held that it was not appropriate to dispense with the rules of evidence, which require expert witnesses to rely on their own specialised knowledge rather than adopting the opinions of others. Consequently, the court ruled that Dr Kenny's Report and the Conferral Reports were inadmissible.

In conclusion, the court rejected the objections to Dr Martin’s Revised Report, accepted the Joint Statements as admissible in so far as they were relied upon by Dr Martin as a foundation for his opinions, and ruled that Dr Kenny’s Report and the Conferral Reports were inadmissible. This decision underscores the importance of adhering to the rules of evidence and the necessity for experts to base their opinions on their own specialised knowledge.