Generally (in the absence of a wider statutory power) in an appeal by way of rehearing, the appellate court can only exercise its powers where, having regard to all the evidence before it, the appellant demonstrates that the order appealed from is the result of some legal, factual or discretionary error.
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In Fox v Percy [2003] HCA 22; (2003) 214 CLR 118; (at [25]) (Fox) Gleeson CJ, Gummow and Kirby JJ held that:
... the appellate court is obliged to conduct a real review of the trial and ... of [the trial] judge's reasons. Appellate courts are not excused from the task of 'weighing conflicting evidence and drawing [their] own inferences and conclusions, though [they] should always bear in mind that [they have] neither seen nor heard the witnesses, and should make due allowance in this respect' (Dearman v Dearman [1908] HCA 84; (1908) 7 CLR 549 at 564, citing The Glannibanta (1876) 1 PD 283 at 27).
And, although the appeal is by way of rehearing, the appellate does not have a free hand. Only if, after making proper allowance for the advantages of the trial judge, it concludes that an error has been shown, then, the appellate court is authorised and obliged to exercise its appellate duties in accordance with the statute: Fox at [27] per Gleeson CJ, Gummow and Kirby JJ.
Ordinarily, if there has been no further evidence admitted and no relevant change in the law, a court entertaining an appeal by way of rehearing can exercise its appellate powers only if satisfied that there was error on part of the court below: Coal and Allied Operations Pty Ltd v Australian Industrial Relations Commission [2000] HCA 47; (2000) 203 CLR 194 at [14] per Gleeson CJ, Gaudron and Hayne JJ.
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I am of opinion that the nature of an appeal under Div 3.10.2 is of an appeal by way of re-hearing on the evidence below, together with such further evidence as may be admitted under s 214 of the Magistrates Court Act. Such a 're-hearing' does not involve a completely fresh hearing by the Supreme Court on appeal. The Court would ordinarily proceed on the basis of the record in the court below, together with any additional evidence that is admitted under s 214.
Where no oral evidence was given below, or the trial judge's findings based on oral evidence are not challenged, the Supreme Court on appeal is in as good a position as the Magistrate to decide the proper inference to be drawn from the undisputed facts which were in evidence. In deciding the proper inference to be drawn, the Supreme Court must give respect and weight to the conclusion of the Magistrate, but, once having reached its own conclusion, must give effect to it: Fox at [25] per Gleeson CJ, Gummow and Kirby JJ, applying Warren v Coombes [1979] HCA 9; (1979) 142 CLR 531 at 551; [1979] HCA 9; 23 ALR 405 at 422-3; see too CGU Insurance Ltd v Porthouse (2008) 248 ALR 240; 82 ALJR 1135; [2008] HCA 30 at [69] per Gummow, Kirby, Heydon, Crennan and Kiefel JJ.