Promises Without Penalties: The Enforceability Problem in International Human Rights Law

I. Introduction

In 2022, the United Nations Human Rights Committee issued its concluding observations on a State party that had ratified the International Covenant on Civil and Political Rights over four decades earlier. The Committee documented systematic use of torture in detention facilities, arbitrary imprisonment of political opponents, and widespread suppression of freedom of expression. The State filed a response, acknowledged the concerns in general terms, and took no meaningful action. The Committee had no power to compel otherwise. This episode is not an anomaly; it is the structural condition of international human rights law.

International human rights law rests on a fundamental tension. It articulates obligations of the highest moral weight—obligations concerning torture, arbitrary detention, the right to life—yet it operates within a legal order that is formally premised on State sovereignty[1] and the absence of a compulsory enforcement authority.[2] States assume treaty obligations on the basis of consent,[3] but the mechanisms for ensuring compliance are, with narrow exceptions, advisory, political, and largely without coercive force.

This article argues that the enforceability deficit in international human rights law is structural rather than incidental, and that addressing it requires a combination of institutional reform and reorientation of enforcement strategy away from State-centric models towards more diffuse mechanisms of accountability. The article proceeds as follows. Section II sets out the existing legal framework and the principal enforcement mechanisms. Section III analyses the structural weaknesses of the current system. Section IV examines regional enforcement models that offer partial solutions. Section V proposes a framework for strengthening enforcement without requiring fundamental revision of the sovereign State system.

II. The Existing Legal Framework

A. The Core Treaty Architecture

The international human rights system is built around a set of core multilateral treaties. The International Covenant on Civil and Political Rights (ICCPR) obliges State parties to respect and ensure civil and political rights to all individuals within their territory and subject to their jurisdiction.[4] The International Covenant on Economic, Social and Cultural Rights (ICESCR) imposes a qualified obligation to progressively realise economic and social rights to the maximum of available resources.[5] Together with the Universal Declaration of Human Rights, these instruments form what is commonly described as the International Bill of Human Rights.[6]

Each core treaty establishes a committee of independent experts to monitor State compliance. States are required to submit periodic reports to their respective committees, which review the reports, engage in constructive dialogue with State delegations, and issue concluding observations. The committees may also issue general comments elaborating on the content and scope of treaty obligations. These processes are the backbone of the universal treaty body system.

B. Case Law and Adjudicative Bodies

The International Court of Justice (ICJ) has addressed human rights obligations in a number of significant cases. In Barcelona Traction, the Court recognised that certain obligations erga omnes—owed to the international community as a whole—arise from the prohibition of acts of aggression, genocide, and violations of fundamental human rights.[7] In Nicaragua v. United States, the Court affirmed that certain human rights rules form part of customary international law binding on all States regardless of treaty ratification.[8] In Democratic Republic of the Congo v. Rwanda, the Court confirmed that obligations arising from peremptory norms of general international law (jus cogens) cannot be derogated from by treaty.[9]

The Human Rights Committee, operating under the First Optional Protocol to the ICCPR, may receive and consider individual communications alleging treaty violations by State parties that have accepted its competence.[10] Its views, however, are not legally binding in the sense of creating enforceable judgments. They constitute authoritative determinations of treaty obligations, but States are under no obligation to implement them as a matter of international law enforceable through external compulsion.

III. The Structural Weaknesses of the Current System

A. The Sovereignty Constraint

The fundamental obstacle to enforcement is the principle of sovereign equality.[11] States are formally equal subjects of international law, and the international system contains no legislature capable of enacting binding human rights norms without State consent, no executive capable of compelling compliance, and no judiciary with compulsory universal jurisdiction. As Koskenniemi observed, international law operates in the space between the demand for normative universality and the political reality of State sovereignty, and human rights law sits at the most acute point of that tension.[12]

The UN Security Council possesses the most powerful enforcement tools available in the international system, including the authority to authorise coercive measures under Chapter VII of the UN Charter.[13] However, the veto power held by the five permanent members renders Security Council action on human rights situations politically contingent. States with strategic alliances among the permanent members are effectively shielded from Security Council enforcement regardless of the severity of their human rights record.

B. The Voluntary Compliance Model

Treaty body monitoring depends almost entirely on State cooperation. States must submit periodic reports; they are not compelled to do so on time, or at all. Many States are significantly in arrears in their reporting obligations. The concluding observations issued by treaty bodies are not legally binding in the sense of creating obligations enforceable through judicial execution. States may accept, partially implement, or ignore recommendations without triggering any automatic legal consequence.

Empirical research has questioned whether treaty ratification itself reliably improves human rights outcomes. Hathaway’s influential study found that, for many categories of rights, treaty ratification shows little correlation with improved practice, and in some cases may be negatively correlated—suggesting that ratification serves expressive and diplomatic functions without generating compliance pressure.[14] This finding, even if contested, points to a structural pathology: the treaty system allows States to acquire the legitimacy benefits of ratification without the compliance costs that a functioning enforcement regime would impose.

C. The International Criminal Law Partial Solution

The establishment of the International Criminal Court (ICC) introduced individual criminal accountability for the most serious human rights violations amounting to war crimes, crimes against humanity, and genocide.[15] The prosecution of individual perpetrators before international and hybrid tribunals, as in the International Criminal Tribunal for the Former Yugoslavia,[16] represents a departure from the State-centric model of human rights enforcement. However, international criminal law addresses the most extreme violations and cannot substitute for a comprehensive enforcement regime governing the full range of human rights treaty obligations.

IV. Regional Enforcement Models: Lessons from Practice

A. The European System

The European Court of Human Rights (ECtHR), operating under the European Convention on Human Rights,[17] represents the most developed regional enforcement mechanism in the world. The Court issues legally binding judgments, individual and inter-State applications are permitted,[18] and the Committee of Ministers supervises the execution of judgments. In Loizidou v. Turkey, the Court confirmed that Convention obligations extend to areas under the effective control of a State party, expanding the jurisdictional reach of the Convention.[19] The ECtHR model demonstrates that binding judicial enforcement of human rights is institutionally achievable within a system of sovereign States, though the high volume of cases and execution delays represent persistent challenges.

B. The Inter-American System

The Inter-American Court of Human Rights, established under the American Convention on Human Rights,[20] issues binding judgments on State parties that have accepted its contentious jurisdiction. In Velasquez Rodriguez v. Honduras, the Court established that States bear responsibility for failing to prevent and investigate human rights violations committed by private actors, significantly broadening the scope of State obligations.[21] The Inter-American system has demonstrated particular effectiveness in generating structural reform orders requiring States to modify legislation and institutional practices, though political resistance among some States and limited enforcement capacity remain constraints.

C. The African System

The African Commission on Human and Peoples’ Rights, established under the African Charter,[22] operates as a quasi-judicial body with weaker enforcement powers than its European and Inter-American counterparts. The African Court on Human and Peoples’ Rights was established subsequently to provide binding judicial oversight, but its jurisdiction is accepted by only a fraction of African Union member States, limiting its reach considerably.

V. Proposals for Strengthening Enforcement

The comparative survey in Section IV reveals that binding judicial enforcement is institutionally feasible where States have accepted the jurisdiction of a regional court. The challenge at the universal level is political rather than technical: the conditions of consent necessary for binding universal enforcement do not currently exist. This article submits that three complementary strategies can strengthen the enforcement architecture without requiring the political consensus necessary for structural revision of the UN Charter.

First, the treaty body system should be reformed to introduce consequences for persistent non-compliance. The current system allows States to ignore concluding observations indefinitely. A reformed system should provide that States failing to take any steps to implement treaty body recommendations within a defined period are referred to the Human Rights Council for enhanced scrutiny under the Universal Periodic Review mechanism, with the results formally communicated to the General Assembly.[23] This falls short of binding enforcement but introduces reputational and political costs that the current system does not impose.

Second, the Optional Protocol individual communication mechanism should be expanded. Only a minority of State parties to the ICCPR have ratified the Optional Protocol accepting the Committee’s competence to receive individual communications.[24] Advocacy efforts, including within the Universal Periodic Review process, should be directed at increasing ratification rates and at securing comparable complaint mechanisms under all core treaties.

Third, non-State actors including national human rights institutions, civil society organisations, and domestic courts should be integrated more systematically into the enforcement architecture.[25] Domestic courts in a growing number of jurisdictions have demonstrated willingness to apply international human rights norms directly in domestic proceedings.[26] Strengthening the capacity and independence of these actors, through technical assistance, treaty body engagement, and international support, represents a diffuse enforcement strategy that does not depend on inter-State political will.

VI. Conclusion

International human rights law has achieved remarkable normative development over seven decades. The obligations articulated in the core treaties are extensive, well-elaborated, and broadly ratified. What remains inadequate is the system for ensuring that these obligations are translated into practice. The enforceability problem is not a peripheral imperfection; it is a structural feature of a legal order built on sovereign consent and without compulsory enforcement authority.

This article has argued that the deficit is structural, that international criminal law provides only a partial response, that regional systems demonstrate the feasibility of binding enforcement where political conditions allow, and that a combination of reformed treaty body procedures, expanded individual complaint mechanisms, and investment in domestic and civil society enforcement capacity offers the most realistic path towards a more effective system.

The human being detained without charge, the journalist imprisoned for her reporting, and the community dispossessed of its land are not served by obligations that exist on paper and are monitored by committees whose recommendations are routinely disregarded. Strengthening enforceability is not merely a technical legal project; it is the condition on which the promise of international human rights law depends.

References and Bibliography

Cases

Barcelona Traction, Light and Power Company, Limited (Belg. v. Spain), 1970 I.C.J. 3 (Feb. 5).

Democratic Republic of the Congo v. Rwanda, 2006 I.C.J. 6 (Feb. 3).

Loizidou v. Turkey, App. No. 15318/89, Eur. Ct. H.R. (1996).

Military and Paramilitary Activities in and Against Nicaragua (Nicar. v. U.S.), 1986 I.C.J. 14 (June 27).

Prosecutor v. Slobodan Milosevic, Case No. IT-02-54, Decision on Motion for Judgment of Acquittal (Int’l Crim. Trib. for the Former Yugoslavia June 16, 2004).

Velasquez Rodriguez v. Honduras, Inter-Am. Ct. H.R. (Ser. C) No. 4 (1988).

International Instruments

African Charter on Human and Peoples’ Rights, 1981, 1520 U.N.T.S. 217.

European Convention on Human Rights, 1950, 213 U.N.T.S. 221.

Inter-American Convention on Human Rights, 1969, 1144 U.N.T.S. 123.

International Covenant on Civil and Political Rights, 1966, 999 U.N.T.S. 171.

International Covenant on Economic, Social and Cultural Rights, 1966, 993 U.N.T.S. 3.

Optional Protocol to the International Covenant on Civil and Political Rights, 1966, 999 U.N.T.S. 302.

Rome Statute of the International Criminal Court, 1998, 2187 U.N.T.S. 90.

United Nations Charter (1945).

Universal Declaration of Human Rights, G.A. Res. 217A, U.N. Doc. A/810 (Dec. 10, 1948).

Vienna Convention on the Law of Treaties, 1969, 1155 U.N.T.S. 331.

Secondary Sources

Thomas Buergenthal, International Human Rights Law and Institutions: Accomplishments and Prospects, 63 Wash. L. Rev. 1 (1988).

Jack Donnelly, Universal Human Rights in Theory and Practice (3d ed. 2013).

Ryan Goodman & Derek Jinks, Socializing States: Promoting Human Rights Through International Law (Oxford University Press 2013).

Oona Hathaway, Do Human Rights Treaties Make a Difference?, 111 Yale L.J. 1935 (2002).

Louis Henkin, How Nations Behave: Law and Foreign Policy (2d ed. 1979).

Human Rights Committee, General Comment No. 31, U.N. Doc. CCPR/C/21/Rev.1/Add.13 (May 26, 2004).

Martti Koskenniemi, The Politics of International Law, 1 Eur. J. Int’l L. 4 (1990).

United Nations Office of the High Commissioner for Human Rights, Strengthening the United Nations Human Rights Treaty Body System (2012).

[1]Louis Henkin, How Nations Behave: Law and Foreign Policy 47 (2d ed. 1979).

[2]United Nations Charter art. 2, cl. 1.

[3]Vienna Convention on the Law of Treaties, 1969, art. 26, 1155 U.N.T.S. 331.

[4]International Covenant on Civil and Political Rights, 1966, art. 2, 999 U.N.T.S. 171.

[5]International Covenant on Economic, Social and Cultural Rights, 1966, art. 2, 993 U.N.T.S. 3.

[6]Universal Declaration of Human Rights, G.A. Res. 217A, U.N. Doc. A/810 (Dec. 10, 1948).

[7]Barcelona Traction, Light and Power Company, Limited (Belg. v. Spain), 1970 I.C.J. 3 (Feb. 5).

[8]Military and Paramilitary Activities in and Against Nicaragua (Nicar. v. U.S.), 1986 I.C.J. 14, 218 (June 27).

[9]Democratic Republic of the Congo v. Rwanda, 2006 I.C.J. 6, 64 (Feb. 3).

[10]Human Rights Committee, General Comment No. 31, U.N. Doc. CCPR/C/21/Rev.1/Add.13 (May 26, 2004).

[12]Martti Koskenniemi, The Politics of International Law, 1 Eur. J. Int’l L. 4, 7 (1990).

[13]United Nations Charter art. 39.

[14]Oona Hathaway, Do Human Rights Treaties Make a Difference?, 111 Yale L.J. 1935, 1940 (2002).

[15]Rome Statute of the International Criminal Court, 1998, art. 17, 2187 U.N.T.S. 90.

[16]Prosecutor v. Slobodan Milosevic, Case No. IT-02-54, Decision on Motion for Judgment of Acquittal (Int’l Crim. Trib. for the Former Yugoslavia June 16, 2004).

[17]European Convention on Human Rights, 1950, art. 34, 213 U.N.T.S. 221.

[19]Loizidou v. Turkey, App. No. 15318/89, Eur. Ct. H.R. (1996).

[20]Inter-American Convention on Human Rights, 1969, art. 44, 1144 U.N.T.S. 123.

[21]Velasquez Rodriguez v. Honduras, Inter-Am. Ct. H.R. (Ser. C) No. 4 (1988).

[22]African Charter on Human and Peoples’ Rights, 1981, art. 58, 1520 U.N.T.S. 217.

[23]Thomas Buergenthal, International Human Rights Law and Institutions: Accomplishments and Prospects, 63 Wash. L. Rev. 1, 5 (1988).

[24]United Nations, Optional Protocol to the International Covenant on Civil and Political Rights, 1966, 999 U.N.T.S. 302.

[25]Jack Donnelly, Universal Human Rights in Theory and Practice 22 (3d ed. 2013).

[26]Ryan Goodman & Derek Jinks, Socializing States: Promoting Human Rights Through International Law 15 (Oxford University Press 2013).