Criminal evidence and procedure – Wilful fire raising – Discussion in chambers – Sufficiency of evidence. High Court of Justiciary: Refusing an appeal by an appellant who was convicted of two charges involving wilful fire raising in areas of forestry, the court held that a discussion in chambers, which took place after a juror informed the clerk of the court on the first day of the trial that he knew one of the witnesses, was not a fundamental irregularity which had caused a miscarriage of justice, that there was sufficient evidence to prove that the fires had been set deliberately, and that it was permissible to apply the principle of mutual corroboration.