In reviewing police disciplinary proceedings, procedural irregularities do not automatically render proceedings a nullity where: (1) the trial officer, though not a trained magistrate, conducts proceedings "as near as possible" to proper court procedures; (2) the rules of natural justice are followed; (3) reasons for conviction and sentence are given, even if not in the conventional order; and (4) real and substantial justice has been achieved. A trial officer's reversal of the normal procedure by announcing a verdict before giving reasons does not vitiate proceedings to the extent of declaring them a nullity, provided that adequate reasons are subsequently given.