law: 111. Power of confirming authority to mitigate, remit or commute sentences.
  Subject to such restrictions, reservations or conditions, as may be contained in any warrant issued under section 108 or section 109, a confirming authority may, when confirming the sentence of a Security Force Court, mitigate or remit the punishment thereby awarded, or commute that punishment for any punishment or punishments lower in the scale laid down in section 48.