OPINIO JURIS SIVE NECESSITATIS
opinio juris sive necessitatis ([schwa]-pin-ee-oh joor-is sI-vee n[schwa]-ses-i-tay-tis). [Latin ¡°opinion that an act is necessary by rule of law¡±] Int’l law. The principle that for conduct or a practice to become a rule of customary international law, it must be shown that nations believe that international law (rather than moral obligation) mandates the conduct or practice. ¡ª Also termed opinio juris.
Carl, Chinese legal translator, specializes in translating legal documents pertaining to complex business disputes