Section 47

Subject to subsection (4), when the court is likely to derive assistance from an opinion upon a point of scientific, technical or other specialised knowledge, the opinions of experts upon that point are relevant facts.

An expert is a person with such scientific, technical or other specialised knowledge based on training, study or experience.

The opinion of an expert is not irrelevant merely because the opinion or part of the opinion relates to a matter of common knowledge.

An opinion which is otherwise relevant under subsection (1) is not relevant if the court is of the view that it would not be in the interests of justice to treat it as relevant.