Gavin Howe
International law is a set of rules that govern the relationships between nations, providing a framework for cooperation and conflict resolution. It is based on agreements between nations, known as treaties, which are binding and govern the rights and obligations of participating countries. Treaties are codified in conventions such as the Vienna Convention on the Law of Treaties and the Charter of the United Nations. While international law does not have a governing body for direct enforcement, nations are incentivized to abide by it through treaties and the potential for economic sanctions. Treaties can be terminated or withdrawn from, but the process varies and may require the consent of all parties. Additionally, international law does not supersede domestic law within nations, and its application can be complex when multiple nations' laws are involved.
| Characteristics | Values |
|---|---|
| Nature of international law | Operates upon the consent of participating nations |
| Enforcement of international law | No governing body exists to enforce international agreements |
| Sources of international law | Conventions/treaties, customary law, general principles of law, judicial decisions/scholarly articles |
| Role of treaties | Binding agreements between nations that govern rights and obligations |
| Treaty termination | By consent of all parties, or in conformity with treaty provisions |
| Treaty abrogation | May be terminated by Congress through public law or by presidential action |
| Legislative repeal of treaties | May violate international contracts and lead to international negotiations or conflict |
| US treaty law | Treaties are supreme law of the land, on par with acts of Congress |
| Judicial determination | President may determine if treaty provisions have lapsed without consulting Congress |
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What You'll Learn
Treaties as law of the land
In the United States, treaties are regarded as the law of the land, as per the US Constitution. Chief Justice Marshall wrote in 1829:
> "A treaty is, in its nature, a contract between two nations, not a legislative act. It does not generally effect, of itself, the object to be accomplished; especially, so far as its operation is infra-territorial; but is carried into execution by the sovereign power of the respective parties to the instrument. In the United States, a different principle is established. Our constitution declares a treaty to be the law of the land. It is, consequently, to be regarded in courts of justice as equivalent to an act of the legislature, whenever it operates of itself, without the aid of any legislative provision."
This means that a treaty is considered a contract between nations, but in the US, it is also considered a law. In US courts, a treaty is seen as equivalent to an act of the legislature and is thus binding.
However, this does not mean that all treaties are self-executing. Marshall also stated that a treaty is:
> "...to be regarded in courts of justice as equivalent to an act of the legislature, whenever it operates of itself, without the aid of any legislative provision."
This indicates that some treaties may require additional legislative action to be implemented. The question of when a treaty is self-executing and when it requires congressional implementation has been a frequent topic of debate in Congress.
The US Constitution also recognises that treaty commitments do not diminish Congress's constitutional powers. In the case of a conflict between a treaty provision and an act of Congress, the latter prevails. While Congress can repeal a treaty, doing so may violate the treaty as an international contract, leading to potential international repercussions.
The President also plays a role in treaty termination. It is recognised that the President may, without consulting Congress, determine whether specific treaty provisions have lapsed. However, the actual termination of a treaty typically requires congressional action, as seen in the example of the abrogation of the French treaty.
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International law enforcement
Another key player in international law enforcement is Interpol, officially known as the International Criminal Police Organization. Founded in 1923, Interpol is an international organization that facilitates cooperation and collaboration among national law enforcement institutions. It provides investigative support, expertise, training, and database assistance to law enforcement agencies worldwide. While Interpol does not have its own law enforcement powers, it plays a crucial role in coordinating and supporting member countries in their efforts to combat various forms of transnational crime, including terrorism, cybercrime, organized crime, drug trafficking, and crimes against humanity.
To effectively enforce international laws, countries often collaborate through mutual legal assistance treaties (MLATs) or international organizations. MLATs are agreements between two or more countries that establish procedures for cooperation in criminal investigations and prosecutions. They facilitate the sharing of evidence, information, and assistance across borders, enabling law enforcement agencies to work together more efficiently. Additionally, international organizations such as the United Nations (UN) and the International Criminal Court (ICC) play pivotal roles in establishing and enforcing international laws. The UN, through its various agencies and programs, promotes international cooperation, peace, and security, while the ICC has jurisdiction over the prosecution of individuals accused of the most serious international crimes, such as genocide, war crimes, and crimes against humanity.
In conclusion, international law enforcement is a multifaceted endeavor that relies on the cooperation and collaboration of multiple entities. Through organizations like ILEA and Interpol, as well as international treaties and organizations, countries work together to address transnational crimes and uphold international laws. By sharing resources, expertise, and information, law enforcement agencies across the globe can more effectively combat global challenges and ensure a safer world for all.
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International law and domestic law
Sources of international law include treaties, customary practices, general principles of law, and judicial decisions. Its authority is based on the consent of participating states, allowing them to maintain their independence while cooperating internationally. International law lacks a centralised enforcement mechanism, relying primarily on voluntary compliance through diplomatic negotiations, economic sanctions, and international courts. In contrast, domestic law sources include the constitution, statutes, regulations, and case law specific to a country. It is enforced through the country's judicial system and law enforcement agencies.
The relationship between international and domestic law can be complex. While international law respects state sovereignty, domestic legal systems often have a hierarchical structure, with constitutional provisions holding the highest authority. International law, however, lacks a rigid hierarchy, and conflicts between different sources are resolved using principles such as lex posterior (later treaty prevails) or lex specialis (specialised treaty prevails). In interpreting domestic law, efforts are made to align with relevant international obligations. Domestic courts may interpret international treaties and conventions, integrating them into the legal framework through implementation legislation.
In the United States, the President plays a role in interpreting and terminating treaties. While the President can determine if treaty provisions have lapsed, the termination of treaties typically requires congressional action. For example, in 1846, Congress authorised the President to notify Britain of the abrogation of the Convention on the joint occupation of the Oregon Territory. This highlighted that even treaties terminable by notice require congressional action for the US to terminate them.
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International law sources
International law is a set of rules and principles that govern the relationships and conduct of sovereign states with each other, as well as with international organisations and individuals. While there is no governing body to enforce international agreements, international law largely operates based on the consent of participating nations. Treaties and the possibility of economic sanctions incentivise nations to abide by international law.
Article 38 of the Statute of the International Court of Justice lists four principal sources of international law: conventions/treaties, customary law, general principles of law, and judicial decisions/scholarly articles. Treaties are binding agreements between nations that govern the rights and obligations of participating countries. Treaties can play the role of contracts between two or more parties, such as an extradition treaty or a defence pact. Treaties are considered the "hard law" and take precedence over other sources of international law.
Customary international law refers to the general and consistent practice of states that they follow out of a sense of legal obligation. Custom may supersede older treaties, and new treaties may override older customs. Jus cogens, or peremptory norms, are considered customary international law. General principles of law recognised by 'civilised nations' may be recognised as a principal or auxiliary source of international law. Judicial decisions and juristic writings are regarded as auxiliary sources of international law and are rarely used.
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Treaty termination
Treaties are often considered to be the supreme law of the land, and as such, they can be extremely difficult to repeal or terminate. However, there are certain mechanisms in place that allow for treaty termination under international law.
Firstly, it is important to note that the power to terminate a treaty can vary depending on the country and its legal system. For example, in the United States, there is a debate about whether the power to terminate a treaty lies with the President alone, with the President and the Senate, or with Congress. While some argue that the President's foreign relations power includes the ability to terminate treaties, others contend that the Senate's consent is required for termination, just as it is for the making of a treaty. Ultimately, it may be argued that only Congress can terminate a treaty, similar to how it can undo a statute.
One way to terminate a treaty is through the consent of all the parties involved. This is provided for in Article 62 (2) (b) of the Vienna Convention on the Law of Treaties (VCLT). If the treaty creates rights or obligations for a third state, their consent may also be required for termination. Additionally, a material breach of a bilateral treaty by one party can serve as grounds for the other party to terminate the treaty or suspend its operation, as outlined in Article 60 (1) of the VCLT. However, this does not apply if the party invoking the breach is itself already in breach or has prevented the other party from complying.
Another way a treaty can be terminated is through a unilateral act by one of the parties, known as denunciation. This act seeks to terminate that party's participation in the treaty. Denunciation is typically applied to bilateral treaties, while the term withdrawal is more commonly used for multilateral treaties. Impossibility of performance is generally not a valid reason for terminating a treaty, unless it is due to a fundamental change in circumstances that existed at the time the treaty was signed. This concept is outlined in Article 62 of the VCLT, which acknowledges that a party may no longer be bound by a contract if there has been a significant change in conditions.
Finally, there have been instances where a country's legislative body, such as Congress in the United States, has taken actions to mandate treaty terminations by notifying the President or changing the legal environment so that the treaty is no longer applicable. For example, in 1846, Congress authorized the President to notify the British government of the abrogation of the Convention of August 6, 1827, regarding the joint occupation of the Oregon Territory.
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Frequently asked questions
International law governs the relations between nations and sets forth mandates for those nations to abide by. Treaties are binding agreements between nations that govern the rights and obligations of participating countries. International law largely operates upon the consent of participating nations as there is no governing body to enforce international agreements.
Treaties can be terminated or repealed. A treaty is void if, at the time of its conclusion, it conflicts with a peremptory norm of general international law. A party may not invoke the provisions of its internal law as justification for its failure to perform a treaty. Treaties can be terminated by a country's President or Congress.
A treaty can be terminated or a party can be withdrawn in two ways: (a) in conformity with the provisions of the treaty; or (b) at any time by consent of all the parties after consultation with the other contracting states.
