International organization — European Coal and Steel Community — Responsibility of — For injuries arising from “faute de service” — Injuries caused by High Authority to enterprises within Community — Fraudulent certificates of origin of scrap issued by official of Netherlands Ministry of Economic Affairs — Delegation by High Authority of power to issue certificates — Consequent excess payments from subsidy fund to enterprises on basis of fraudulent certificates — Whether plaintiffs as contributors to fund suffered direct injury — Distinction between political and legal responsibility — Whether issue or aceptance of certificates was “faute de service” by High Authority — Treaty establishing Community, Article 40 — Evidence to prove admission of liability by High Authority — Effect of replies given by officials of Authority in Common Assembly.