I What institutions are international courts PCIJ ICJ UN ICC Under article 38 of the ICJ Statute the sources of the international law are acts of international organisations treaties custom principles of international law international acts Constitutive elements of treaty are being in written agreement specific legal intention of the parties being governed by International law

International courts are institutions that have jurisdiction over disputes or cases involving international law. Some examples of international courts include the PCIJ (Permanent Court of International Justice), ICJ (International Court of Justice), UN (United Nations), and ICC (International Criminal Court).<br /><br />Under article 38 of the ICJ Statute, the sources of international law are:<br /><br />1. Treaties: Agreements between states that establish rights and obligations for the parties involved.<br />2. Custom: Practices and norms that have developed over time and are accepted as binding by states.<br />3. Principles of international law: General principles that are recognized as binding by states and are derived from natural law or other sources.<br />4. International acts: Acts of international organizations or other entities that have the power to create international law.<br /><br />The constitutive elements of a treaty are:<br /><br />1. Being in writing: Treaties must be in written form to be considered valid.<br />2. Specific legal intention of the parties: The parties involved in the treaty must have a specific legal intention to enter into a legally binding agreement.<br />3. Being governed by international law: Treaties must be governed by international law and not by domestic law.