Economics, trade and finance — Export licensing system — Strategic scientific equipment — Legislative ban on the export of strategic goods prejudicing “the interests of the international legal order” — Proposed sale of oscilloscope to State not a party to the Nuclear Non-Proliferation Treaty, 1968 — Evidence adduced that oscilloscope could be used by State for nuclear purposes — Whether sale prejudicing the interests of the international legal order — Whether interests of international legal order outweighed by necessity to maintain freedom of international trade — The law of the Netherlands