{"id":13523,"date":"2025-12-27T12:56:19","date_gmt":"2025-12-27T12:56:19","guid":{"rendered":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/?p=13523"},"modified":"2025-12-27T13:01:43","modified_gmt":"2025-12-27T13:01:43","slug":"the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens","status":"publish","type":"post","link":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/","title":{"rendered":"The Normative Architecture: Interplay Between Treaty Law and Customary International Law (Jus Cogens)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"treaties-customary-international-law-overview\"><span class=\"ez-toc-section\" id=\"International_Jurisprudence_Treaties_Customary_International_Law_and_Jus_Cogens\"><\/span>International Jurisprudence: Treaties, Customary International Law, and Jus Cogens<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the vast landscape of international jurisprudence, the relationship between Treaties (written agreements) and Customary International Law (unwritten, universal practices) forms the backbone of global order. While treaties resemble contracts between nations, customary law represents the shared conscience of the international community. At the apex of this hierarchy lies Jus Cogens\u2014peremptory norms from which no derogation is permitted. Understanding how these distinct sources of law collide, overlap, and reinforce one another is essential for grasping how justice is administered on a global scale.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0c0c0c;color:#0c0c0c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0c0c0c;color:#0c0c0c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#International_Jurisprudence_Treaties_Customary_International_Law_and_Jus_Cogens\" >International Jurisprudence: Treaties, Customary International Law, and Jus Cogens<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Defining_the_Pillars_Treaties_vs_Customary_International_Law\" >Defining the Pillars: Treaties vs. Customary International Law<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Treaties_Conventional_Law\" >Treaties (Conventional Law)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Customary_International_Law_CIL\" >Customary International Law (CIL)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Illustrative_Example\" >Illustrative Example<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#The_Concept_of_Jus_Cogens_The_%E2%80%9CSuper-Norms%E2%80%9D\" >The Concept of Jus Cogens: The \u201cSuper-Norms\u201d<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Commonly_Recognized_Jus_Cogens_Norms\" >Commonly Recognized Jus Cogens Norms<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#The_Relationship_Dynamics_How_They_Interact\" >The Relationship Dynamics: How They Interact<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Codification_Custom_to_Treaty\" >Codification (Custom to Treaty)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Generation_Treaty_to_Custom\" >Generation (Treaty to Custom)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Conflict_of_Laws_When_Treaties_Meet_Jus_Cogens\" >Conflict of Laws: When Treaties Meet Jus Cogens<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#What_Happens_When_a_Treaty_and_a_Custom_Say_Different_Things\" >What Happens When a Treaty and a Custom Say Different Things?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Practical_Example\" >Practical Example<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Leading_Case_Law\" >Leading Case Law<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#The_Barcelona_Traction_Case_1970\" >The Barcelona Traction Case (1970)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Questions_Relating_to_the_Obligation_to_Prosecute_or_Extradite_Belgium_v_Senegal_2012\" >Questions Relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal, 2012)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Vlastimir_Dordevic_v_Prosecutor_ICTY\" >Vlastimir \u0110or\u0111evi\u0107 v. Prosecutor (ICTY)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Summary_Comparison_Table\" >Summary Comparison Table<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Conclusion\" >Conclusion<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Written_By_Judge_Nazmul_Hasan\" >Written By: Judge Nazmul Hasan<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Profile_Overview\" >Profile Overview<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Professional_Expertise\" >Professional Expertise<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Academic_Distinction\" >Academic Distinction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Honors_Achievements_Awards_of_Excellence\" >Honors &amp; Achievements (Awards of Excellence)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.legalserviceindia.com\/Legal-Articles\/the-normative-architecture-interplay-between-treaty-law-and-customary-international-law-jus-cogens\/#Contact_Information\" >Contact Information<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"defining-the-pillars-treaties-vs-customary-law\"><span class=\"ez-toc-section\" id=\"Defining_the_Pillars_Treaties_vs_Customary_International_Law\"><\/span>Defining the Pillars: Treaties vs. Customary International Law<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Before exploring their relationship, we must define the two primary sources of international law as outlined in Article 38(1) of the Statute of the International Court of Justice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"treaties-conventional-law\"><span class=\"ez-toc-section\" id=\"Treaties_Conventional_Law\"><\/span>Treaties (Conventional Law)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>These are formal, written agreements between states (e.g., The UN Charter, The Geneva Conventions).<\/li>\n\n\n\n<li>They only bind the states that sign and ratify them (the principle of <em>pacta sunt servanda<\/em>).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"customary-international-law-definition\"><span class=\"ez-toc-section\" id=\"Customary_International_Law_CIL\"><\/span>Customary International Law (CIL)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This arises from a general and consistent practice of states followed by them from a sense of legal obligation (<em>Opinio Juris<\/em>).<\/li>\n\n\n\n<li>Unlike treaties, CIL can bind all states, regardless of whether they signed a document.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"treaty-vs-custom-example\"><span class=\"ez-toc-section\" id=\"Illustrative_Example\"><\/span>Illustrative Example<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Example: While a specific treaty might ban plastic waste in the Mediterranean, the broader prohibition against \u201csignificant transboundary environmental harm\u201d is considered a rule of Customary International Law that applies to all nations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"jus-cogens-super-norms\"><span class=\"ez-toc-section\" id=\"The_Concept_of_Jus_Cogens_The_%E2%80%9CSuper-Norms%E2%80%9D\"><\/span>The Concept of Jus Cogens: The \u201cSuper-Norms\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Jus Cogens (Latin for \u201ccompelling law\u201d) refers to fundamental principles of international law that are so universally accepted that they can never be set aside. Under Article 53 of the Vienna Convention on the Law of Treaties (VCLT), any treaty that conflicts with a jus cogens norm is void.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"recognized-jus-cogens-norms\"><span class=\"ez-toc-section\" id=\"Commonly_Recognized_Jus_Cogens_Norms\"><\/span>Commonly Recognized Jus Cogens Norms<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The prohibition of genocide.<\/li>\n\n\n\n<li>The prohibition of slavery.<\/li>\n\n\n\n<li>The prohibition of torture.<\/li>\n\n\n\n<li>The prohibition of wars of aggression (illegal use of force).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"relationship-dynamics-treaties-custom\"><span class=\"ez-toc-section\" id=\"The_Relationship_Dynamics_How_They_Interact\"><\/span>The Relationship Dynamics: How They Interact<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The relationship is not competitive but symbiotic. They often move through two processes:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"codification-custom-to-treaty\"><span class=\"ez-toc-section\" id=\"Codification_Custom_to_Treaty\"><\/span>Codification (Custom to Treaty)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This occurs when a long-standing custom is written down into a formal treaty to provide more clarity and precision.<\/p>\n\n\n\n<p>Case Reference: In the <em>North Sea Continental Shelf Cases<\/em> (1969), the ICJ looked at whether the \u201cequidistance principle\u201d for maritime boundaries had moved from a custom into the 1958 Geneva Convention.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"generation-treaty-to-custom\"><span class=\"ez-toc-section\" id=\"Generation_Treaty_to_Custom\"><\/span>Generation (Treaty to Custom)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Sometimes, a rule starts in a treaty but becomes so widely accepted that it turns into a custom, binding even those who never signed the treaty.<\/p>\n\n\n\n<p>Case Reference: In the <em>Nicaragua v. United States<\/em> (1986) case, the ICJ held that the prohibition on the use of force, while written in the UN Charter (a treaty), also existed independently as Customary International Law.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conflict-of-laws-when-treaties-meet-jus-cogens\"><span class=\"ez-toc-section\" id=\"Conflict_of_Laws_When_Treaties_Meet_Jus_Cogens\"><\/span>Conflict of Laws: When Treaties Meet Jus Cogens<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"treaty-versus-customary-law\"><span class=\"ez-toc-section\" id=\"What_Happens_When_a_Treaty_and_a_Custom_Say_Different_Things\"><\/span>What Happens When a Treaty and a Custom Say Different Things?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lex Specialis:<\/strong> Generally, a specific treaty takes precedence over a general custom.<\/li>\n\n\n\n<li><strong>The Jus Cogens Exception:<\/strong> If a treaty provision violates a jus cogens norm, the treaty is automatically \u201cnull and void.\u201d No two states can legally agree to commit genocide or engage in human trafficking via a treaty.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"practical-example-jus-cogens\"><span class=\"ez-toc-section\" id=\"Practical_Example\"><\/span>Practical Example<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>If Country A and Country B sign a \u201cMutual Defense Treaty\u201d that includes a secret clause to systematically exterminate an ethnic minority in a border region, that treaty is legally non-existent under international law because it violates the jus cogens prohibition of genocide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"leading-case-law\"><span class=\"ez-toc-section\" id=\"Leading_Case_Law\"><\/span>Leading Case Law<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>To understand these concepts, we must look at how the courts have ruled:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"barcelona-traction-case-1970\"><span class=\"ez-toc-section\" id=\"The_Barcelona_Traction_Case_1970\"><\/span>The Barcelona Traction Case (1970)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This case introduced the concept of <em>erga omnes<\/em> obligations\u2014obligations owed to the international community as a whole. The court suggested that because certain customs (like the prohibition of aggression) are so important, every state has a legal interest in their protection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"belgium-v-senegal-2012\"><span class=\"ez-toc-section\" id=\"Questions_Relating_to_the_Obligation_to_Prosecute_or_Extradite_Belgium_v_Senegal_2012\"><\/span>Questions Relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal, 2012)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The ICJ explicitly confirmed that the prohibition of torture is a part of Customary International Law and has attained the status of jus cogens. This means Senegal could not use its internal laws or lack of treaty ratification to avoid its obligation to address alleged torture.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"vlastimir-djordjevic-ict\"><span class=\"ez-toc-section\" id=\"Vlastimir_Dordevic_v_Prosecutor_ICTY\"><\/span>Vlastimir \u0110or\u0111evi\u0107 v. Prosecutor (ICTY)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>In criminal law contexts, courts frequently cite the jus cogens nature of crimes against humanity to justify why \u201cstatutes of limitations\u201d (time limits for prosecution) do not apply.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"summary-comparison-table\"><span class=\"ez-toc-section\" id=\"Summary_Comparison_Table\"><\/span>Summary Comparison Table<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Treaty Law<\/th><th>Customary Law (CIL)<\/th><th>Jus Cogens<\/th><\/tr><\/thead><tbody><tr><td>Form<\/td><td>Written<\/td><td>Unwritten \/ Practice<\/td><td>Fundamental Norm<\/td><\/tr><tr><td>Consent<\/td><td>Explicit (Ratification)<\/td><td>Implicit (State Practice)<\/td><td>Universal (Non-consensual)<\/td><\/tr><tr><td>Flexibility<\/td><td>States can \u201cOpt-out\u201d<\/td><td>\u201cPersistent Objector\u201d Rule<\/td><td>No Derogation Allowed<\/td><\/tr><tr><td>Legal Status<\/td><td>Binding on Parties<\/td><td>Binding on All (Mostly)<\/td><td>Supreme Authority<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The relationship between treaties and customary international law is one of constant evolution. Treaties provide the \u201cblack letter\u201d clarity that modern diplomacy requires, while customary law ensures that even in the absence of a signature, states are bound by basic standards of humanity. Jus cogens acts as the ultimate safeguard, ensuring that no treaty\u2014no matter how formally correct\u2014can legalize acts that shock the conscience of mankind. For the student of law, recognizing that a treaty is often just a \u201csnapshot\u201d of an evolving custom is the key to mastering international jurisprudence.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"written-by-judge-nazmul-hasan\"><span class=\"ez-toc-section\" id=\"Written_By_Judge_Nazmul_Hasan\"><\/span>Written By: Judge Nazmul Hasan<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Senior Judicial Magistrate | Prime Minister Gold Medalist<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"profile-overview\"><span class=\"ez-toc-section\" id=\"Profile_Overview\"><\/span>Profile Overview<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>p&gt;Nazmul Hasan is a highly accomplished judicial officer and legal scholar from Bangladesh, distinguished by a rare blend of judicial service excellence and unparalleled academic achievement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"professional-expertise\"><span class=\"ez-toc-section\" id=\"Professional_Expertise\"><\/span>Professional Expertise<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Title<\/th><th>Achievement \/ Service<\/th><th>Details<\/th><\/tr><\/thead><tbody><tr><td>Senior Judicial Magistrate<\/td><td>Bangladesh Judicial Service (BJS)<\/td><td>Serving as a Senior Judicial Magistrate, demonstrating profound expertise in dispensing justice and administering court procedures.<\/td><\/tr><tr><td>Service Rank<\/td><td>11th Bangladesh Judicial Service (BJS)<\/td><td>Secured the 7th Merit Position overall in the rigorous 11th BJS competitive examination, marking an exceptional start to a distinguished judicial career.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"academic-distinction\"><span class=\"ez-toc-section\" id=\"Academic_Distinction\"><\/span>Academic Distinction<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Qualification<\/th><th>Institution<\/th><th>Recognition<\/th><\/tr><\/thead><tbody><tr><td>LL.B. (Hons.)<\/td><td>University of Rajshahi<\/td><td>First Class First (Top of the Cohort), signifying ultimate academic mastery in undergraduate legal studies.<\/td><\/tr><tr><td>LL.M.<\/td><td>University of Rajshahi<\/td><td>Achieved First Class standing, further solidifying expertise and specialized knowledge in advanced legal disciplines.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"honors-and-achievements\"><span class=\"ez-toc-section\" id=\"Honors_Achievements_Awards_of_Excellence\"><\/span>Honors &amp; Achievements (Awards of Excellence)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prime Minister Gold Medalist (2017)<\/strong><br>Awarded the nation\u2019s most prestigious academic honor for outstanding performance across all disciplines at the university level.<\/li>\n\n\n\n<li><strong>Agrani Bank Gold Medalist for Academic Excellence (2023)<\/strong><br>Recognized with this distinguished medal for sustained academic excellence and leadership in the field of law.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"contact-information\"><span class=\"ez-toc-section\" id=\"Contact_Information\"><\/span>Contact Information<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><strong>Email:<\/strong> lawnewplatform2021@gmail.com<\/p>\n\n\n\n<p><a href=\"https:\/\/www.legalserviceindia.com\/int_lawyers\/lawyers-in-Dhaka.htm\" target=\"_blank\" rel=\"noreferrer noopener\">Connect with Experienced Lawyers in Bangladesh<\/a><\/p>\n\n\n\n<p>Find trusted lawyers in Bangladesh offering legal advice, litigation support, corporate law services, and personal legal assistance.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>International Jurisprudence: Treaties, Customary International Law, and Jus Cogens In the vast landscape of international jurisprudence, the relationship between Treaties (written agreements) and Customary International Law (unwritten, universal practices) forms the backbone of global order. While treaties resemble contracts between nations, customary law represents the shared conscience of the international community. At the apex of<\/p>\n","protected":false},"author":888,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"two_page_speed":[],"_jetpack_memberships_contains_paid_content":false,"_joinchat":[],"footnotes":""},"categories":[80],"tags":[355,28],"class_list":{"0":"post-13523","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-international-law","7":"tag-international-law","8":"tag-top-news"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts\/13523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/users\/888"}],"replies":[{"embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/comments?post=13523"}],"version-history":[{"count":0,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/posts\/13523\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/media?parent=13523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/categories?post=13523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.legalserviceindia.com\/Legal-Articles\/wp-json\/wp\/v2\/tags?post=13523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}