The binding legal principles established are: (1) A trial judge's occasional impatience or abruptness with counsel does not constitute bias or render a trial unfair if the judge applies an open mind to the evidence and gives a reasoned judgment. (2) A judge has a duty to actively manage trials, control proceedings, ensure resources are not wasted, and refuse irrelevant evidence - this does not constitute bias. (3) Even where irregularities in trial conduct are established, proceedings will only be set aside if there was a failure of justice, meaning the evidence unaffected by the irregularities was insufficient to prove guilt beyond reasonable doubt (s 322(1) of the Criminal Procedure Act). (4) No adverse inference should be drawn from failure to call witnesses unless there is reason to believe the uncalled witness could contradict the State's case - not merely to corroborate existing evidence or rebut allegations without evidentiary foundation. (5) In evaluating evidence, courts must consider it holistically, weighing elements pointing to guilt against those indicating innocence, and decide whether the balance excludes reasonable doubt. (6) The test for appellate interference with sentence is whether it is vitiated by irregularity or misdirection or is disturbingly inappropriate. (7) Heads of argument must comply with court rules requiring them to be clear, succinct, without unnecessary elaboration or lengthy quotations, with specific page and paragraph references - non-compliance may result in costs orders disallowing recovery of fees for excessive material.