State territory — Parts of — Territorial waters — Delimitation of Baselines — Low — tide elevations — Convention on Territorial Sea and Contiguous Zone, 1958 — United Kingdom Territorial Waters Order in Council, 1964.

Treaties — Operation of — Municipal legislation giving effect to treaty — Interpretation of such legislation — Ambiguity — Interpretation to accord with treaty — Convention on Territorial Sea and Contiguous Zone, 1958 — United Kingdom Territorial Waters Order in Council, 1964.

State Territory — Parts of — Bays — Internal waters — Definition of bay — Convention on the Territorial Sea and Contiguous Zone, 1958 (Article 7) — Status of Thames estuary — Interpretation of United Kingdom Territorial Waters Order in Council, 1964 — “Indentation” — “Natural entrance points” — Whether test cartographical — Baseline of territorial waters — Low-tide elevations — Definition of — Prerogative of Crown to declare extent of United Kingdom territorial waters — The law of England.