¹[465.(1) If at the trial of any person before a Court of Session, it appears to the Court that such person is of unsound mind and consequently incapable of making his defence, the Court shall, in the first instance, try the fact of such unsoundness and incapacity, and if the Court is satisfied of the fact, it shall record a finding to that effect and shall postpone further proceedings in the case. (2) The trial of the fact of the unsoundness of mind and incapacity of the accused shall be deemed to be part of his trial before the Court.]