Introduction
The relationship between Turkish constitutional law and human rights law is one of the most important subjects in the Turkish legal system. The Constitution of the Republic of Türkiye protects fundamental rights and freedoms, while international human rights law, especially the European Convention on Human Rights, plays a major role in the interpretation and application of these rights. This relationship affects constitutional litigation, ordinary court proceedings, administrative law, criminal justice, property rights, freedom of expression, fair trial guarantees and individual applications before the Constitutional Court of Türkiye.
Turkish constitutional law is not isolated from international human rights law. On the contrary, the Constitution expressly gives special importance to international agreements concerning fundamental rights and freedoms. Article 90 of the Constitution provides that international agreements duly put into effect have the force of law, and where there is a conflict between domestic laws and international agreements concerning fundamental rights and freedoms, the provisions of international agreements prevail. This rule creates a direct bridge between domestic constitutional law and international human rights obligations.
The relationship became even more practical after the introduction of individual application before the Constitutional Court. Under Article 148 of the Constitution, everyone may apply to the Constitutional Court alleging that a fundamental right or freedom guaranteed by the Constitution and falling within the scope of the European Convention on Human Rights has been violated by public authorities, provided that ordinary remedies have been exhausted.
1. Constitutional Protection of Fundamental Rights in Türkiye
The Turkish Constitution contains a broad catalogue of fundamental rights and freedoms. These include the right to life, prohibition of torture and ill-treatment, personal liberty and security, privacy, inviolability of domicile, freedom of communication, freedom of religion and conscience, freedom of expression, freedom of the press, freedom of association, property rights, right to education, right to work, social security rights, political rights and the right to a fair trial.
These rights are not merely political declarations. They are binding legal guarantees. Article 11 of the Constitution establishes the supremacy and binding force of the Constitution by providing that constitutional provisions are fundamental legal rules binding legislative, executive and judicial organs, administrative authorities, other institutions and individuals. It also states that laws cannot be contrary to the Constitution.
This means that all public authorities must respect constitutional rights. Parliament must enact laws compatible with fundamental rights. The executive must apply laws in accordance with constitutional limits. Courts must interpret and enforce legal rules in a rights-sensitive manner. Administrative authorities must avoid arbitrary or disproportionate interference with individual rights.
2. Human Rights Law as Part of the Turkish Legal Framework
Human rights law enters the Turkish legal system through international treaties, constitutional interpretation, judicial review and individual application. Türkiye is a party to several international human rights instruments, but the European Convention on Human Rights has a particularly important role because individual application before the Constitutional Court is tied to rights protected by both the Turkish Constitution and the Convention system.
International human rights law affects Turkish law in two main ways. First, duly ratified international agreements become part of domestic law. Second, where domestic laws conflict with international agreements concerning fundamental rights and freedoms, the international agreement prevails under Article 90 of the Constitution.
This gives human rights treaties a special interpretive and practical value. Turkish courts and administrative authorities should not treat international human rights standards as foreign or irrelevant. They are part of the legal framework that must be considered when fundamental rights are at issue.
3. Article 90 of the Turkish Constitution
Article 90 is the cornerstone of the relationship between Turkish constitutional law and international human rights law. It regulates the ratification of international treaties and their status in domestic law. The most important part for human rights law is the rule that, in case of conflict between domestic laws and international agreements concerning fundamental rights and freedoms, the international agreement prevails.
This provision has significant practical consequences. If an ordinary law is inconsistent with a human rights treaty to which Türkiye is a party, courts should apply the treaty standard in the field of fundamental rights. This does not mean that international treaties automatically replace the Constitution. Rather, it means that ordinary laws must be interpreted and applied in harmony with international human rights obligations.
For lawyers, Article 90 is a powerful legal argument. It may be invoked in cases involving fair trial rights, freedom of expression, property rights, privacy, family life, personal liberty, prohibition of discrimination and effective remedies. Where domestic legislation is unclear or restrictive, international human rights standards may guide constitutional interpretation.
4. Article 13 and the Limitation of Fundamental Rights
The relationship between constitutional law and human rights law is also visible in the limitation of fundamental rights. Article 13 of the Constitution provides the general framework for restricting fundamental rights and freedoms. Restrictions must be made only by law, must not infringe upon the essence of the right, must comply with the requirements of the democratic order of society and the secular Republic, and must respect the principle of proportionality.
This structure is closely aligned with modern human rights law. Under international human rights standards, restrictions on rights must generally be lawful, pursue a legitimate aim, be necessary in a democratic society and be proportionate. Turkish constitutional law therefore uses concepts that are also central to the European human rights system.
This is especially important in cases concerning freedom of expression, assembly, property, detention, privacy, disciplinary sanctions and administrative restrictions. A public authority cannot simply rely on a statutory rule. It must also show that the interference is necessary, proportionate and compatible with democratic society.
5. The European Convention on Human Rights and Turkish Constitutional Law
The European Convention on Human Rights is the most influential international human rights instrument in Turkish constitutional practice. The Convention protects core rights such as the right to life, prohibition of torture, right to liberty and security, right to a fair trial, respect for private and family life, freedom of thought, conscience and religion, freedom of expression, freedom of assembly and association, right to an effective remedy, prohibition of discrimination and property rights through Protocol No. 1.
The importance of the Convention increased after individual application to the Constitutional Court became available. Article 148 limits individual application to fundamental rights and freedoms guaranteed by the Constitution and falling within the scope of the European Convention on Human Rights. The Constitutional Court has described this as a “joint protection area” of the Constitution and the Convention.
As a result, the Convention is not merely an external reference. It directly determines the scope of individual application before the Constitutional Court. If a constitutional right does not fall within the scope of the Convention or its relevant protocols, it may not be independently examined through individual application, even if it exists in the Constitution.
6. Individual Application Before the Constitutional Court
Individual application is one of the most important mechanisms linking Turkish constitutional law with human rights law. It was introduced into the Turkish legal system by the 2010 constitutional amendments and began operating on 23 September 2012. According to the Constitutional Court’s official explanation, everyone may apply to the Court alleging that a fundamental right or freedom guaranteed by the Constitution and within the scope of the European Convention on Human Rights has been violated by public authorities.
This mechanism transformed the Constitutional Court from an institution primarily focused on norm review into a direct protector of individual rights. Before individual application, individuals could not generally bring rights-based complaints directly before the Constitutional Court. Today, claims involving fair trial, property rights, freedom of expression, personal liberty, privacy, non-enforcement of judgments and prohibition of ill-treatment may be brought before the Court after ordinary remedies are exhausted.
Individual application also encourages ordinary courts to apply constitutional and human rights standards more carefully. Since ordinary court judgments may later be reviewed by the Constitutional Court from a rights-based perspective, judges must consider whether their decisions comply with constitutional guarantees and Convention principles.
7. Exhaustion of Domestic Remedies and the Strasbourg System
The relationship between Turkish constitutional law and human rights law is also important for applications to the European Court of Human Rights. The European Court of Human Rights has treated individual application to the Turkish Constitutional Court as a domestic remedy that should generally be exhausted before applying to Strasbourg.
In Hasan Uzun v. Turkey, the European Court of Human Rights examined the individual application remedy before the Turkish Constitutional Court and found that the Turkish Parliament had entrusted that court with powers capable, in principle, of providing direct and speedy redress for violations of Convention rights.
This means that, in many cases, an applicant must first apply to the Turkish Constitutional Court before bringing a complaint before the European Court of Human Rights. Therefore, the Constitutional Court functions as an important domestic human rights court within the broader European human rights protection system.
8. Constitutional Court Case-Law and Human Rights Standards
The Constitutional Court of Türkiye frequently uses human rights concepts in its individual application case-law. These include legality, legitimate aim, necessity in a democratic society, proportionality, fair balance, positive obligations, procedural obligations, effective investigation, equality of arms and reasoned judgment.
The Court does not simply repeat international standards mechanically. It interprets rights under the Turkish Constitution, but it does so within the shared protection area of the Constitution and the European Convention on Human Rights. This creates a blended constitutional-human rights method.
For example, in freedom of expression cases, the Court may examine whether the interference was prescribed by law, pursued a legitimate aim and was necessary in a democratic society. In property rights cases, it may assess whether a fair balance was struck between public interest and individual rights. In fair trial cases, it may examine access to court, equality of arms, adversarial proceedings and reasoned judgment.
9. The Right to a Fair Trial
The right to a fair trial is one of the most common areas where constitutional law and human rights law intersect. Article 36 of the Turkish Constitution protects the right to litigation and fair trial, while Article 6 of the European Convention on Human Rights provides detailed fair trial guarantees.
In Turkish constitutional practice, fair trial rights include access to court, independent and impartial tribunal, equality of arms, adversarial proceedings, reasoned judgment, trial within a reasonable time and enforcement of final judgments. These concepts are strongly influenced by European human rights standards.
A fair trial complaint before the Constitutional Court cannot be framed merely as disagreement with the result of ordinary litigation. The applicant must show that the proceedings themselves violated a constitutional guarantee. For example, a court’s failure to address a decisive argument, denial of access to court through excessive formalism or non-enforcement of a final judgment may raise constitutional and human rights concerns.
10. Freedom of Expression
Freedom of expression is another key area of interaction. Article 26 of the Constitution protects freedom of expression and dissemination of thought, while Article 10 of the European Convention on Human Rights protects freedom of expression at the international level.
In Turkish constitutional law, restrictions on expression must satisfy the requirements of legality, legitimate aim, democratic necessity and proportionality. These standards are closely connected to the European human rights approach.
Freedom of expression cases may involve criminal investigations, insult or defamation proceedings, disciplinary sanctions, internet access restrictions, media regulations, social media posts, journalistic reporting, academic speech or political criticism. In such cases, courts must consider whether the expression contributed to public debate, whether the speaker acted in a public-interest context, the severity of the sanction and the possible chilling effect.
11. Property Rights
Property rights also demonstrate the relationship between constitutional law and human rights law. Article 35 of the Turkish Constitution protects property and inheritance rights, while Article 1 of Protocol No. 1 to the European Convention on Human Rights protects peaceful enjoyment of possessions.
In constitutional property disputes, the central question is whether the interference with property was lawful, pursued public interest and maintained a fair balance between the community’s needs and the individual’s rights. This analysis reflects both Turkish constitutional doctrine and European human rights standards.
Property rights claims may arise in expropriation, zoning restrictions, tax disputes, administrative fines, confiscation, enforcement proceedings, public debts, delayed compensation and non-enforcement of court judgments. Companies and foreign investors may also rely on property protection where the nature of the right allows it.
12. Personal Liberty and Security
Personal liberty and security are protected under the Turkish Constitution and the European Convention on Human Rights. This area is especially important in criminal proceedings, pre-trial detention, arrest, administrative detention and immigration-related detention.
A deprivation of liberty must be lawful, based on concrete reasons, subject to judicial review and proportionate. Detention cannot be justified through formulaic or abstract reasoning. Courts must assess whether detention remains necessary and whether alternative measures could be sufficient.
The individual application mechanism allows applicants to challenge alleged violations of personal liberty before the Constitutional Court. This domestic remedy is particularly significant because the European Court of Human Rights has emphasized exhaustion of the Constitutional Court remedy in many contexts involving Convention rights.
13. Positive Obligations of the State
Human rights law does not only require the State to refrain from interfering with rights. In many fields, it also imposes positive obligations. Turkish constitutional law has increasingly incorporated this idea through Constitutional Court case-law.
Positive obligations may require the State to protect life, prevent ill-treatment, conduct effective investigations, protect property, safeguard private and family life, prevent discrimination or provide effective judicial remedies. For example, if public authorities know of a real and serious risk to life or physical integrity, they may be required to take reasonable protective measures.
This is an important bridge between constitutional law and human rights law. Rights are not only defensive shields against the State. They also require legal and institutional frameworks capable of protecting individuals against serious harm, including harm caused by private parties in certain circumstances.
14. Proportionality and Fair Balance
Proportionality is one of the most important shared concepts in Turkish constitutional law and human rights law. Article 13 expressly refers to proportionality in the restriction of fundamental rights and freedoms.
The proportionality test generally requires suitability, necessity and balance. A public measure must be capable of achieving a legitimate aim. It must be necessary, meaning that a less restrictive alternative should not be available. It must also strike a fair balance between public interest and individual rights.
This test is used in many areas, including property rights, freedom of expression, administrative fines, detention, public employment, disciplinary sanctions and internet restrictions. Proportionality prevents public authorities from imposing excessive burdens on individuals even when pursuing legitimate aims.
15. Equality and Non-Discrimination
Equality before the law is protected by Article 10 of the Turkish Constitution. International human rights law also contains strong non-discrimination guarantees. The relationship between these sources is important because discrimination claims often require both constitutional and Convention-based analysis.
Equality does not mean that everyone must always be treated identically. Different treatment may be justified where there is an objective and reasonable basis. However, arbitrary or discriminatory distinctions may violate constitutional and human rights standards.
In individual applications, discrimination claims should generally be connected to another protected right within the joint protection area of the Constitution and the European Convention on Human Rights. This is because individual application jurisdiction is tied to rights protected by both systems.
16. International Human Rights Law in Ordinary Litigation
The influence of human rights law is not limited to individual applications before the Constitutional Court. Ordinary courts should also consider constitutional and international human rights standards when deciding cases.
For example, a criminal court should interpret procedural rules consistently with fair trial rights. A civil court should balance reputation and freedom of expression in defamation cases. An administrative court should examine whether an administrative sanction is proportionate. A tax court should consider property rights and legal certainty. A family court should consider private and family life, equality and the best interests of the child where relevant.
Article 90 strengthens this approach because it gives human rights treaties a privileged position over conflicting domestic laws in the field of fundamental rights and freedoms.
17. Constitutional Interpretation and Human Rights-Friendly Reading
The relationship between Turkish constitutional law and human rights law also affects interpretation. Courts should prefer interpretations that protect rights and harmonize domestic law with international obligations.
A human rights-friendly interpretation is particularly important when domestic law is ambiguous. If a statutory rule can be interpreted in two ways, and one interpretation better protects fundamental rights, courts should generally prefer the rights-protective interpretation. This approach supports constitutional supremacy, legal certainty and compliance with international obligations.
However, courts must also respect the limits of judicial interpretation. They cannot rewrite clear statutory provisions in a way that replaces the legislature. If a law is clearly unconstitutional, constitutional review mechanisms may become necessary.
18. Practical Importance for Lawyers
For lawyers, the relationship between constitutional law and human rights law has major practical value. A strong legal argument should not rely only on ordinary legislation. It should also consider constitutional guarantees, Article 90, the European Convention on Human Rights and Constitutional Court case-law.
In criminal cases, lawyers may rely on personal liberty, presumption of innocence, fair trial and prohibition of unlawful evidence. In civil cases, they may rely on access to court, reasoned judgment, property rights and private life. In administrative cases, they may rely on legality, proportionality, equality, legitimate expectation and effective remedy. In expression cases, they may invoke democratic necessity and chilling effect.
The individual application stage should not be treated as an afterthought. Constitutional and human rights objections should be raised before ordinary courts. This helps satisfy the exhaustion requirement and gives domestic courts an opportunity to remedy the violation.
19. Human Rights Law and Foreigners in Türkiye
Foreigners also benefit from many constitutional and human rights protections in Türkiye. The Constitution uses the term “everyone” in many rights provisions, and Article 16 allows fundamental rights and freedoms of foreigners to be restricted by law in accordance with international law.
Foreigners may rely on rights such as right to life, prohibition of ill-treatment, liberty and security, fair trial, property, private and family life, and effective remedy. However, some political rights and citizenship-related rights may be reserved for Turkish citizens.
In practice, human rights law is particularly important in deportation, residence, detention, family unity, property ownership, employment, education and access to court matters involving foreigners. International human rights standards may strengthen domestic constitutional arguments in these fields.
20. The Future of the Relationship Between Constitutional Law and Human Rights Law
The relationship between Turkish constitutional law and human rights law will continue to develop through Constitutional Court case-law, ordinary judicial practice and the interaction between domestic remedies and the European Court of Human Rights.
The Constitutional Court remains central to this relationship because it operates as both a constitutional court and a domestic human rights court in individual application cases. Its interpretation of the joint protection area between the Constitution and the European Convention on Human Rights determines how international standards are applied domestically.
The effectiveness of this system depends not only on written rules but also on implementation. Ordinary courts must apply constitutional standards. Administrative authorities must respect rights. Constitutional Court judgments must be implemented. Lawyers must raise human rights arguments at the proper stage. Individuals must have access to effective remedies.
Conclusion
The relationship between Turkish constitutional law and human rights law is one of integration, interaction and mutual reinforcement. The Turkish Constitution protects fundamental rights and freedoms, while international human rights law, especially the European Convention on Human Rights, provides interpretive guidance and substantive standards.
Article 90 gives international human rights treaties a privileged position in cases of conflict with ordinary laws concerning fundamental rights and freedoms. Article 148 connects individual application before the Constitutional Court to rights protected by both the Constitution and the European Convention on Human Rights. Together, these provisions make human rights law a practical part of Turkish constitutional litigation.
The Constitutional Court of Türkiye plays a key role in this system. Through individual application, it examines alleged violations of fundamental rights by public authorities and applies constitutional standards in light of human rights principles. This mechanism also functions as an important domestic remedy before potential applications to the European Court of Human Rights.
For individuals, companies, foreigners, investors and lawyers, this relationship has direct practical importance. Human rights law may affect criminal defense, administrative litigation, property disputes, freedom of expression cases, fair trial complaints, deportation matters, family law disputes and commercial litigation involving public authorities.
Ultimately, Turkish constitutional law and human rights law should be understood as connected legal frameworks. Their shared purpose is to protect human dignity, limit public power, ensure fair procedures and provide effective remedies against rights violations.
FAQ: Turkish Constitutional Law and Human Rights Law
What is the relationship between Turkish constitutional law and human rights law?
Turkish constitutional law protects fundamental rights domestically, while international human rights law provides additional standards and interpretive guidance. Article 90 of the Constitution gives special importance to international human rights treaties.
Why is Article 90 of the Turkish Constitution important?
Article 90 provides that in case of conflict between domestic laws and international agreements concerning fundamental rights and freedoms, international agreements prevail.
What is the role of the European Convention on Human Rights in Türkiye?
The European Convention on Human Rights plays a central role in constitutional interpretation and individual application before the Constitutional Court because individual application is limited to rights protected by both the Constitution and the Convention system.
What is individual application before the Constitutional Court?
Individual application is a constitutional remedy allowing individuals to apply to the Constitutional Court when they claim that public authorities violated their fundamental rights protected by the Constitution and falling within the scope of the European Convention on Human Rights.
Must individuals apply to the Constitutional Court before going to the European Court of Human Rights?
In many cases, yes. The European Court of Human Rights has accepted individual application to the Turkish Constitutional Court as a domestic remedy that should generally be exhausted.
Does human rights law affect ordinary Turkish court cases?
Yes. Ordinary courts should interpret and apply domestic law in harmony with constitutional rights and international human rights obligations, especially in areas such as fair trial, expression, property and liberty.
Can companies rely on human rights protections in Türkiye?
Yes, where the nature of the right allows it. Companies may rely on property rights, access to court, fair trial guarantees and certain other protections.
Can foreigners rely on constitutional and human rights protections in Türkiye?
Yes. Foreigners benefit from many rights protected by the Constitution and human rights treaties, although some rights may be restricted by law in accordance with international law.
What is the joint protection area of the Constitution and the European Convention on Human Rights?
It refers to rights that are protected both by the Turkish Constitution and the European Convention on Human Rights. Individual application before the Constitutional Court generally operates within this joint protection area.
Why is this relationship important for lawyers?
Because strong legal arguments in Türkiye often require combining ordinary legislation, constitutional rights, Article 90, Constitutional Court case-law and international human rights standards.
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