States as international persons — Composite and dependent states and territories — Sovereignty over mandated and trust territories — Mandate for South-West Africa — Power and competence of the mandatory to legislate in respect of the mandated territory — Whether the Mandate contemplated any limitation — Whether the acceptance of the Mandate involved any limitation — Obligation under the Mandate — Whether courts in a position to enforce — The South-West Africa Constitution Act, 1925 — Termination of Mandate by UN General Assembly — Effect of — Whether courts have jurisdiction to determine the question — The law of South Africa