# # # General Principles of Law

The Statute of the International Court of Justice mentions the general principles of law recognized by civilized nations. This is found in Article 38. The general principles of law are derived from the common provisions of the domestic law of each country. There are still questions in academic circles. They question whether the general principles of law belong to the sources of international law. General principles of law form the third source of international law. The meaning of general principle of law recognized by civilized nations has been the topic of extensive discussion. Some writers believe the phrase includes general principles found in domestic jurisprudence. These principles can be applied to international legal questions. The other view asserts that the phrase refers to general principles of law connected to natural law. These principles were interpreted during recent centuries in the Western world. Most modern writers consider general principles of law a secondary source of international law. They are used infrequently in practice. Still, they can be helpful on occasion. Next are some examples of general principles of law applied by the international courts and tribunals. 1. Principle of good faith. Good faith is a broad term used to encompass honest dealing. Depending on the exact setting, good faith requires an honest belief or purpose. It also requires faithful performance of duties. It involves observance of fair dealing standards or an absence of fraudulent intent. This principle is fundamentally important in the law of treaties. It is codified in Article 26 of the 1969 Vienna Convention on the Law of Treaties. This principle has been mentioned in many judgments of the International Court of Justice. In the 1974 nuclear test case, the court emphasized that the principle of good faith governs the creation and performance of legal obligations, whatever their source. 2. Principle of equity. Equity is a principle characterized by its focus on principles of fairness, justice, and conscience. Equity can perform three functions. First, it can be used to adapt the law to the facts of individual cases. Second, it can be used to fill gaps in the law. Third, it can be used as a reason for refusing to apply unjust laws. The above-mentioned functions merge into one another to some extent. In particular, equity infralegum can be used in a wide number of situations. It ranges from cases that differ only slightly from a strict application of the letter of the law. It includes cases where the spirit of the law prevails over its letter. It also covers cases where equitable exceptions are inferred into a rule of law. As a result, a judge who wishes not to apply a rule of law can say that application of the letter of the law would be contrary to its spirit. Many environmental treaties are based on this principle. For example, the 1997 United Nations Convention on Non-Navigational Uses of International Watercourses is one such treaty. In the North Sea cases, International Court of Justice developed applicable principles and criteria of equitable solution. In the process, the ICJ rejected the obligatory use of the equidistance method. It applied equity as a rule of international law to develop principles and criteria for an equitable solution. International courts and tribunals have applied these judicially developed principles and criteria in all subsequent cases. In 1983, Burkina Faso and Mali agreed to submit their frontier dispute to a chamber of the ICJ. Based on submissions by both states, the chamber considered the application of principles of equity. It also examined its relationship to the court's ability to decide a case ex under Article 38.2 of the Statute. 3. Principle of Res Judicata. Res Judicata means a matter judged. The Res Judicata principle states that once there is a final judgment based on merits, another plaintiff cannot re-litigate the same matter. This applies for the same cause of action. International judicial reference has also been made to the concept of Res Judicata. In its 2007 judgment, ICJ emphasized that the principle signifies that the decisions of the court are not only binding on the parties, but are final, in the sense that they cannot be reopened by the parties as regards the issues that have been determined, save by procedures, of an exceptional nature, specially laid down for that purpose. 4. Principle of Circumstantial Evidence. Circumstantial evidence is indirect evidence that does not, on its face, prove a fact an issue but gives rise to a logical inference that the fact exists. Circumstantial evidence requires drawing additional reasonable inferences in order to support the claim. The International Court of Justice in the Corfu Channel case, when referring to circumstantial evidence, pointed out that this indirect evidence is admitted in all systems of law and its use is recognized by international decisions. 5. Obligation to Make Reparation. In the Khashoggi factory case, the PCIJ stated that the court observes that it is a principle of international law, and even a general concept of law, that any breach of an engagement involves an obligation to make reparation. 6. The Principle of Estoppel. The situation of estoppel arises when a state's conduct is clear, sustained and consistent, and the other party relying on such conduct has changed its position to its own detriment or has suffered some prejudice. In the case concerning the Temple of Priyavihir, the ICJ was asked to rule that Cambodia and not Thailand, had sovereignty over the Temple of Priyavihir. In 1904, the boundary between Cambodia and Thailand was determined by a treaty between France and Siam under which a map was prepared which placed the temple in Cambodia. The Siamese received and accepted the map without protest and in 1930 a Siamese prince actually paid a state visit to the disputed area where he was officially received by the French authorities. The court with reference to these facts stated that. Even if there were any doubt as to Siam's acceptance of the map in 1908, and hence of the frontier indicated thereon, the court would consider, in the light of the subsequent course of events, that Thailand is now precluded by her conduct from asserting that she did not accept it. The general principles of law recognized by civilized nations, mentioned in Article 38 of the Statute of the International Court of Justice, constitute the third source of international law. These principles, derived from common provisions of domestic laws, remain a topic of debate in academic circles regarding their status as sources of international law. Some argue that these principles encompass general concepts that apply to both domestic and international legal questions, while others link them to natural law and recent Western interpretations, considering them inadequate sources of international law. Notably, examples of general principles like good faith, equity, res judicata, circumstantial evidence, obligation to make reparation, and estoppel have been applied in international courts, showing their relevance and impact on international legal outcomes.