Minister of Defence v Potsane; Legal Soldier (Pty) Ltd v Minister of Defence

Two matters were heard together in the Constitutional Court. In Potsane, a soldier challenged the constitutionality of provisions of the Military Discipline Supplementary Measures Act 16 of 1999 that authorised military prosecutors to institute and conduct prosecutions in military courts. The Free State High Court upheld the challenge and struck down certain provisions, holding that only the National Director of Public Prosecutions (NDPP) could constitutionally prosecute. In Legal Soldier, several soldiers, a trade union and a legal services company similarly challenged the validity of military prosecutions under the Act and sought direct access to the Constitutional Court. The common contention was that section 179 of the Constitution vests exclusive prosecutorial authority in the NDPP, rendering a separate military prosecuting authority unconstitutional, and that such a system also infringed equality rights.

The appeal by the Minister of Defence succeeded. The order of constitutional invalidity made by the Free State High Court was set aside, and the constitutional challenges in both Potsane and Legal Soldier were dismissed. The impugned provisions of the Military Discipline Supplementary Measures Act were declared constitutionally valid.

The case is a leading authority on the interpretation of section 179 of the Constitution and clarifies that the National Prosecuting Authority does not enjoy an exclusive monopoly over all prosecutions in South Africa. It confirms the constitutional validity of a separate military justice system with its own prosecuting authority and affirms Parliament’s power to create specialised prosecutorial regimes consistent with constitutional requirements.