A general practitioner's opinion about whether a bodily feature is 'moderately unusual' compared to what is 'usually seen' does not satisfy the specialised knowledge requirement of s 79(1) of the Evidence Act 1995 (NSW) where the GP has no specialist training in the relevant anatomical field. Such evidence, even if admitted without objection, may ground a successful appeal on the basis of miscarriage of justice under r 4 of the Criminal Appeal Rules.
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