Adjustment of sentence in case of conviction on 2 or more charges
143.  Where —
(a)it appears to the Military Court of Appeal that an appellant, though not properly convicted on some charge preferred against the appellant before the subordinate military court by which he or she was tried, was properly convicted on some other charge so preferred; and
(b)the sentence passed by the subordinate military court on the appellant was not warranted for the offence of which he or she was convicted on the other charge,
the Court is to pass on the appellant, in substitution for the sentence passed on the appellant by the subordinate military court, a sentence so warranted that the Court thinks proper.