Muma Sinkala v Secretary of State for the Home Department

A first-instance court is bound by an indistinguishable higher-court decision and cannot decline to follow it on the ground that it was decided per incuriam. Children born in Northern Rhodesia to CUKC parents who were also British Protected Persons became Zambian citizens automatically on independence and consequently ceased to be CUKCs. A separate constitutional route permitting registration did not qualify the automatic route. For the British Nationality Act 1981 statelessness provisions, nationality must exist at birth; a later capacity to acquire nationality is insufficient.

The claimant sought a declaration that she was a British Overseas Citizen. She argued that her parents, born in Northern Rhodesia, had become CUKCs on the dissolution of the Federation of Rhodesia and Nyasaland, retained that status after Zambian independence, and transmitted it to her under paragraph 1 of Schedule 2 to the British Nationality Act 1981.

The defendant relied on issue estoppel arising from earlier immigration proceedings and alternatively disputed the parents’ CUKC status, the effect of Zambian independence, and whether the claimant acquired Zambian citizenship at birth.

1. The court declined to dispose of the claim on issue-estoppel or abuse-of-process grounds. The claimant’s nationality status had not previously been determined, and it was in the interests of justice to decide the merits ([56]–[61]).
2. Motala v Attorney-General [1992] 1 AC 281 was indistinguishable and binding. Persons born in Northern Rhodesia to CUKC parents who were also British Protected Persons became Zambian citizens automatically on independence under section 3(1) of the 1964 Constitution. They consequently ceased to be CUKCs under section 3(3) of the Zambia Independence Act 1964. Section 8(2) provided a separate route to citizenship and did not qualify section 3(1) ([62]–[72]).
3. A first-instance judge cannot decline to follow a higher-court decision on the basis that it was decided per incuriam. In any event, the relevant provision must have been overlooked, made the decision wrong, and necessarily required a different result. Those conditions were not met ([68]–[71]).
4. Even if the parents had retained CUKC status, the claimant was not born stateless. Article 6 of the 1973 Constitution made a person born to a Zambian citizen a Zambian citizen at birth. Registration under the Citizenship of Zambia Act 1975 was not required ([73]–[82]).
5. As an alternative, the court held that the claimant had not shown that the relevant ancestors were British subjects. Northern Rhodesia was a protectorate, and the statutory scheme treated persons born there as British Protected Persons rather than British subjects solely by birth ([83]–[94]).
6. The claim for a declaration that the claimant was a British Overseas Citizen was dismissed ([95]).