Environment — Endangered species — Convention on International Trade in Endangered Species of Wild Fauna and Flora, 1973 (CITES) — Control of export of exotic birds — Refusal to grant authority to export on basis of CITES — Arrangement between wildlife authorities of New Zealand and Australia — Whether court empowered to interpret CITES provisions not implemented in domestic law — Whether arrangement between wildlife authorities to be applied by Court — Wildlife Act 1953 — Conservation Act 1987

Treaties — Effect in municipal law — Treaty to which State not yet party — Intention to accede — Whether courts in such a State will give effect to treaty — Proceedings for judicial review — The law of New Zealand