The Function of Law-Making Treaties in the Light of the Constitutionalism Approach in International Law

Document Type : academic


member of College of Farabi of the University of Tehran



In the international law system, a treaty can serve as a source of conventional rules of international law, unlike a contract in domestic law. The pivotal question that arises is: can the rules embedded in law-making treaties, designed to safeguard values or common interests, be deemed as binding convention rules for all members of the international community? This article explores this aspect of law-making treaties in the light of the constitutionalism approach in international law. In this approach, the traditional and horizontal paradigm, stemming from the equality of states, undergoes a transformation into a vertical paradigm grounded in the Constitution. Consequently, the underlying assumption posits that upon the conclusion of a law-making treaty, the legal order that it establishes, begins its autonomous existence.


Main Subjects

  1. In Persian


    Alhooii Nazari, H, Public International Law, Tehran, Publication Dadgostar, 2013.

    Cassese, Antonio, International Law in a Divided World, Translated by Morteza Kalantarian, Tehran, Bureau of International Legal Services of the Islamic Republic of Iran 1991.

    Haddadi, Mahdi, The Recent Development in the Implementation of International Responsibility of States, Tehran, Dadgostar Publication, 2011.

    Evans, G & J. Newnham, Dictionary of International Relations, Translated by Hamira Moshirzadeh and Hossein Sharifi, Tehran, Mizan Legal Foundation , 2002.

    Falsafi, Hedayatullah, International Law of Treaties, Tehran, Nashrenow, 2000.

    Falsafi, Hedayatullah,  Process of Reason in the International Law System, Tehran, Nashrenow, 2017.

    Farzaneh, Y, The Humanization of International Law in the Lights of Responsibility to Protect, Tehran, Mizan Legal Foundation, 2015

    Ghazi, A, Constitutional Law and Political Institutions, Tehran, University of Tehran, 1990.

    Shakerian, S, Understanding Soft Law in the International Law System, Tehran, Mizan Legal Foundation, 2014

    Sharifi Tarazkohi, H, Jus Cogens and International Legal Orders, Tehran, Ministry of Foreign Affairs, Institute of Printing and Publishing, 1996.



    Bagherzadeh, Rizvan and Amir Hossein Ranjbarian, Understanding "International Law Making" in the Light of the General Consideration of Law Making in the Science of Law, Legal Research Quarterly,Vol 19, Issue 74- Serial Number 74, 2016, p 169-192

    Beyzadeh, Ebrahim, The Originality of the Nuclear Weapons Treaty in the Realm of International Law, Legal Research Quarterly, Vol 1, No 16-17,1995.

    Beyzadeh, Ebrahim & Abbas Bagherpour Ardakani, Rereading the Concept of the Principle of Exchange in International Humanitarian Law, Legal Research Quarterly, Special Issue Number 7, 2011.

    Hajizadeh, Mahmoud , Heybatollah Najandimanesh, The Statute of Rule of Law in International Law, Public Law Research, Vol 18, Issue 54, June 2017.

    Haddadi, Mahdi, Reza Esmkhani, The Legal Nature of the Rules of International Organizations: Internal or International, Public Law Studies Quarterly, Vol 50, Issue 4, 2021.

    Rasakh, Mohammad; Intrinsic and Transversal Features of the Law , Majlis and Rahbord, Vol 51, 2006.

     Saed , Nader, Treaty Adherence: The Consent Principle and New Developments in Arms Control and Disarmament, Legal Review, Vol 22, Issue 32, January 2005.

    Kadkhodaei, Abbasali & Amir Maghami, The Consequences of Constitutional Reading of International Law, International Law Review, Vol 35, 59 (Fall-Winter) - Serial Number 59, October 2018.

    Kadkhodaei, Abbasali & Amir Maghami, The Analogue Structure of International Law, Public Law Studies Quarterly, Vol 46, Issue 3, 2016


    Mousavi, Seyed Fazlollah & Hossain Khalaf Rezaei, Constitutionalism in the International Community, Islamic Law Research Journal, Volume 21, Issue 2 - Serial Number 52, November 2020.
    Mirmohammadi , Seyed Mostafa & Ladan Haririan, Reflections on the Formalist and Critical Approaches to the Rules of International Law, International Law Review, Volume 39, Issue 66, May 2022.




    Hosseini Akbarnejad, Halle; Non Reciprocity in the International Human Rights System, PHD Dissertation, Faculty of Law and Political Sciences, Allameh Tabatabai University, 2013

    Rostami , Hamid , The Place of Informal International Law Making and Its Impact on Classical Types of International law making, Master of Public International Law Thesis, Faculty of Law , University of Shahid Beheshti , 2020.

    Abbasi ,Asli , The New Methods of Norm-making in International Law, PHD Dissertation, Faculty of Law , University of Shahid Beheshti, 2019.



    1. Boyle, Alan and Christine Chinkin. The Making of International Law. Oxford: Oxford University Press, 2007.
    2. Garner, Bryan A. A Dictionary of Modern Legal Usage. New York: Oxford University Press, 1995.
    3. McNair, Lord. The Law of Treaties. England: Oxford University Press, 1961.
    4. Reuter, Paul. Introduction to the Law of Treaties. London: Routledge,
    5. Simma, Bruno. "" in Encyclopedia of Public International Law 7, edited by Rudolf Bernhardt, 400-404. The Netherlands: Elsevier Science Publishers B.V, 1984.
    6. Sloss, David. The Role of Domestic Courts in Treaty Enforcement, New York: Cambridge University Press, 2009.


    - Articles

    1. Breau, Susan C. "The Constitutionalization of the International Legal Order." Leiden Journal of International Law 21, Issue 2 (2008).
    2. Brölmann, Catherine. "Law-Making Treaties: Form and Function in International Law." Nordic Journal of International Law 74 (2005).
    3. D’Amato, Anthony. "Treaties as a Source of General Rules of International Law." Harvard International Law Journal 3 (1962).
    4. De Wet, Erika. "The International Constitutional Order." International and Comparative Law Quarterly 55, no. 1 (2006).
    5. Fabbrini, Federico. "The Constitutionalization of International Law: A Comparative Federal Perspective." European Journal of Legal Studies 6, Issue 2 (2013/14).
    6. Kleinlein, Thomas. "Constitutionalization in International " Beiträge zum ausländischen öffentlichen Recht und Völkerrecht 231 (2012).
    7. Van Mulligen, JG. "Global Constitutionalism and the Objective Purport of the International Legal Order." Leiden Journal of International Law 24, Issue 2 (2011).


    - Thesis

    1. Rafferty, John. “Constitutionalism in International Law: The Limits of Jus Cogens." LLM Thesis. University of Pretoria, 2012


    - Cases

    1. Alleged Violations ofthe 1955 Treaty of Amity, Economic Relations, and Consular Rights (Islamic Republic of Iran v. United States of America), Preliminary Objections, Judgment, C.J. Reports 2021.
    2. Application of the Convention on the Prevention and Punishment of the Crime of Genocide (The Gambia v. Myanmar), ICJ Reports
    3. Armed Activities on the Territory of the Congo (New Application: 2002) (Democratic Republic of the Congo v. Rwanda), ICJ Reports
    4. Barcelona Traction Case (Belgium v. Spain) (merits), ICJ Reports
    5. Corfu Channel Case (United Kingdom v. Albania), ICJ Reports
    6. Legal Consequences of the Construction of a Wall in the Occupied Palestinian Territory Case (Advisory Opinion), ICJ Reports
    7. Legality of the Threat or Use of Nuclear Weapons Case (Advisory Opinion), ICJ Reports
    8. Questions Relating to the Obligation to Prosecute or Extradite (Belgium v. Senegal), ICJ Reports
    9. Reparation for Injuries Suffered in the Service of the United Nations, International Court of Justice (Advisory Opinion), ICJ Reports
    10. Southwest Africa Cases (Ethiopia v. South Africa; Liberia v. South Africa), ICJ Reports
    11. The Effect of Reservations on the Entry into Force of the American Convention on Human Rights (Articles 74 and 75), Inter-American Court of Human Rights, Advisory Opinion OC-2/82, September 24, 1982.
    12. The Reservations to the Convention on the Prevention and Punishment of the Crime of Genocide (Advisory Opinion), ICJ Reports, 1951.


    - Documents

    1. Dissenting Opinion of Judge Alvarez to the Reservations to the Convention on the Prevention and Punishment of the Crime of Genocide (Advisory Opinion), ICJ Reports
    2. Draft Conclusions on Identification and Legal Consequences of Peremptory Norms of General International Law (Jus Cogens), Yearbook of the International Law Commission, 2022, Vol. II, Part Two.
    3. Fitzmaurice, Sir Gerald, Report on the Law of Treaties, UN Doc. A/CN.4/107, YILC 1957, Vol. II.
    4. Fragmentation of International Law: Difficulties Arising from the Diversification and Expansion of International Law, Yearbook of International Law Commission, 2006, Vol II, Part Two.
    5. Report on the Work of the Sixty-Ninth Session (2017), ILC ReportA/72/10, 2017, Chap. VIII.


    ج. آلمانی

    1. Triepel, Heinrich. Völkerrecht und Landesrecht. Leipzig: C.L. Hirschfeld, 1899, Reprint by Scientia Antiquariat Aalen.