Monism and Dualism in International Law - Monism

Monism

Monists accept that the internal and international legal systems form a unity. Both national legal rules and international rules that a state has accepted, for example by way of a treaty, determine whether actions are legal or illegal. In most so-called "monist" states, a distinction between international law in the form of treaties, and other international law, e.g., customary international law or jus cogens, is made; such states may thus be partly monist and partly dualist.

In a pure monist state, international law does not need to be translated into national law it is just incorparated and have effects automatically in national or domestic laws. The act of ratifying an international treaty immediately incorporates the law into national law; and customary international law is treated as part of national law as well. International law can be directly applied by a national judge, and can be directly invoked by citizens, just as if it were national law. A judge can declare a national rule invalid if it contradicts international rules because, in some states, the latter have priority. In other states, like in Germany, treaties have the same effect as legislation, and by the principle of lex posterior, only take precedence over national legislation enacted prior to their ratification. In its most pure form, monism dictates that national law that contradicts international law is null and void, even if it predates international law, and even if it is the constitution. From a human rights point of view, for example, this has some advantages. Suppose a country has accepted a human rights treaty - the International Covenant on Civil and Political Rights for instance - but some of its national laws limit the freedom of the press. A citizen of that country, who is being prosecuted by his state for violating this national law, can invoke the human rights treaty in a national courtroom and can ask the judge to apply this treaty and to decide that the national law is invalid. He or she does not have to wait for national law that translates international law. His or her government can, after all, be negligent or even unwilling to translate. The treaty was perhaps only accepted for political reasons, in order to please donor-countries for example.

"So when someone in Holland feels his human rights are being violated he can go to a Dutch judge and the judge must apply the law of the Convention. He must apply international law even if it is not in conformity with Dutch law".

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