Territory — Sovereignty — Recognition of State's claim to sovereignty over territory — Self-determination — East Timor — Australian recognition of Indonesian claims to East Timor

Jurisdiction — Non-justiciability — Whether courts can consider propriety of Executive's recognition of a foreign State's claim to sovereignty to a territory — Recognition by Australia of Indonesia's claim to sovereignty over East Timor

Relationship of international law and municipal law — Treaties — Allegation that treaty inconsistent with international law and with State's international obligations — Whether rendering legislation enacted to implement that treaty invalid — Whether Legislature's competence to legislate on external matters subject to international law and State's international obligations — Australia-Indonesia Treaty establishing zone of cooperation in Timor Gap — Whether enabling legislation invalid — The law of Australia