"Decisions [upon the best course to follow] depend essentially on the judgment of counsel and counsel for the defence, familiar with all aspects and features of the trial, is in by far the best position to make such decisions. Decisions such as those, even if an appeal court thought that counsel had made an unwise or imprudent decision, would almost never found a successful appeal based on miscarriage of justice. The Crown argued that the decision now being considered was of the same type as those decisions but we do not agree. The course to be taken in the conduct of the defence of an accused person is left to the judgment of the defence lawyers. A trial will not normally be regarded as having miscarried if the accused has been afforded a proper opportunity for choice and a choice has been made by his legal representatives on his behalf. This is illustrated by the statement by Barwick CJ in Ratten v R [1974] HCA 35; (1974) 131 CLR 510, at p.517; [1974] HCA 35; 4 ALR 93, at p.99 that: It will not become an unfair trial because the accused of his own volition has not called evidence which was available to him at the time of his trial, or of which, bearing in mind his circumstances as an accused, he could reasonably have been expected to have become aware and which he could have been able to produce at the trial. Amongst the various defects or omissions which may lead a trial to become unfair and to amount to a miscarriage of justice are circumstances which may be treated as vitiating the volition or choice by an accused or his lawyers to follow or refrain from following some course at the trial. Some factors capable of amounting to vitiating factors, which are mentioned in the cases, are fraud, mistake, surprise, malpractice and misfortune, and, with particular reference to defence lawyers, inexperience, remissness, defect of judgment or neglect of duty_: R v Hadland_ [1969] VicRp 93; [1969] VR 725, at p.728; Re Ratten [1974] VicRp 26; [1974] VR 201, at p.204 and R v Sarek [1982] VicRp 99; [1982] VR 971, at p.982."