Customary International Law

Customary international law are those aspects of international law that derive from custom. Coupled with general principles of law and treaties, custom is considered by the International Court of Justice, jurist, the United Nations, and its member states to be among the primary sources of international law. The United States looks at international law in many cases, both with domestic and international impact. There are some advocates/critics who do not believe the United States should use international law to solve domestic issues or international issues.

Customary International law includes treaties, conventions, legal writings of foreign jurist and legal opinions of foreign courts. For example, decisions by the the International Tribunal for Yugoslavia can be quoted as customary international law. While the law is valid and persuasive the weight behind it may be minimal when compared to domestic law. A great deal of this depends on the judge or jury that is being dealt with.

However, not everything that is foreign is customary international law. For example, when the United Nations makes a declaration it is not considered customary international law in U.S courts because there is no definitive law. Instead they are only aspirations or goals that are set forth. As such they cannot be used to define customary international law. There is a possibility that after these goals are met they would become customary international law.

Customary International law is a historic concept that has evolved and expanded over the years. Originally it was conduct that was recognized or practiced by the majority of state actors - for example recognizing that piracy was against the law. Customary international law is a law of consensus and agreement between actors. The law must be accepted by a number of states and cannot be rejected by a majority of states.

Customary International Law includes peremptory norms (which are fundamental principals of law which are accepted by the international community of states as norms which cannot be avoided. For example, slavery, genocide, war of aggression, and crimes against humanity.

Customary international law is a potentially powerful tool that can cover a large variety of topics and can be used in numerous cases, especially the alien tort statute.

Abebe-Jira v. Negewo

On January 10, 1996, the US Court of Appeals for the Eleventh Circuit issued a ruling on Abebe-Jira v. Negewo 72 F.3d 844 (11th Cir. 1996). Negewo claimed that the lawsuit should not have been heard because the courts did not have subject matter jurisdiction and that a non-justiciable political question was present.

The 11th Circuit dismissed both claims of Mr. Negewo and upheld the ruling of the lower court. When writing about the subject matter jurisdiction the court quoted Filartiga, "[S]ection 1350 should interpret international law as it has evolved and exists at the time of the case." (Filartiga 630 F.2d 876 (2d Cir. 1980)). The court then quotes a number of other cases that have interpreted Filartiga to allow rights that are already internationally recognized. For an alien to file a claim under section 1350 the alien needs to meet three conditions: (1) an alien sues (2) for a tort (3) committed in violation of the law of nations (i.e. international law.) Kadic. v Karadzic 70 F.3d 232 (2d Cir. 1995) Furthermore, Congress can enact legislation that allows certain groups of people access to the federal court system and this law allows that.

The claim that this was a non-justiciable political question was quickly thrown out by the court citing Linder v. Portocarrero , 963 F2d 232 (11th Cir. 1992)