77 I turn finally then to ground 4 which, for various reasons set out in the ground, which again I need not set out here, presents the argument that the trial Judge erred in this case by not including in her directions to the jury what is described as a "corroboration warning", a description which it is clear draws on the terminology of the Evidence Act, s 50, ie, a warning to the effect that in the particular case it would be unsafe to convict upon the uncorroborated evidence of one witness. The ground must therefore relate solely to count 1 on the indictment. Again, no such warning was sought by defence counsel at the trial, but of course if this Court should be persuaded that such a warning was in the circumstances of the case required to avoid a perceptible risk of a miscarriage of justice, then the proper course would be to quash the conviction and consider an order for a new trial: Robinson, a case upon which counsel for the applicant placed considerable reliance during argument, but which in my respectful opinion, was concerned with circumstances quite different from this case.