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An Argumentative Analysis of Legal Pluralism and the Challenges of National Legal Unification in Indonesia


Achmad Shiva’ul Haq Asjach

Scholar ID, Sinta ID, Scopus ID, WoSID


Indonesia is a country characterized by a highly complex system of legal pluralism. Since the colonial era through the post-independence period, the legal life of Indonesian society has been influenced by various legal systems that coexist simultaneously, namely customary law, Islamic law, and modern state law. Customary law develops from local societal values that are communal, religious-magical, and concrete in nature. Islamic law evolves through religious norms that possess strong social legitimacy within Muslim communities. Meanwhile, modern state law is formed through a formal legislative system characterized by rationality, bureaucracy, and universality, as described by Marc Galanter in his characterization of modern law (Galanter, 1976).

This diversity of legal systems has produced both dynamics and tensions in the development of national law. Modern states generally attempt to create legal unification in order to ensure legal certainty and regulatory uniformity. However, in plural societies such as Indonesia, efforts toward legal unification often conflict with the existence of living law that continues to exist and be obeyed by society. Eugen Ehrlich emphasized that the law that truly lives within society is not only state law but also social norms that develop and are actually obeyed by the community (living law) (Ehrlich, 1936). Therefore, the development of national law cannot be conducted solely through a formal-legalistic approach.

In my view, the state should not regard customary law and traditional law as obstacles to the development of modern law, but rather as an essential part of national legal identity. The state needs to develop an integrative and pluralistic legal approach while still ensuring legal certainty without eliminating the existence of living law. In this context, legal unification is not always an ideal solution if it is implemented in a centralized manner and ignores the social realities of Indonesia’s diverse society.

Theoretically, modern law as proposed by Marc Galanter has universal, written, systematic characteristics and is administered through state bureaucracy. Such a legal model is indeed important to support the modern state, economic development, and effective governance. However, modern law is often top-down in nature and less sensitive to local culture. As a result, state law sometimes lacks strong social legitimacy in society because it is perceived as being detached from local living values.

In contrast, customary law has a character that is much closer to the life of society. Customary law emerges from social experience, traditions, and cultural values that are passed down from generation to generation. Therefore, people often comply more with customary law than with state law, particularly in the settlement of social disputes, land issues, and family relations. From Eugen Ehrlich’s perspective, this condition demonstrates that living law often operates more quickly and more effectively than formal state law.

The tension between modern law and customary law can be observed in various cases in Indonesia, one of which concerns conflicts over the recognition of indigenous peoples’ rights to customary land (ulayat land). A concrete example can be seen in Constitutional Court Decision No. 35/PUU-X/2012 concerning customary forests. In this decision, the Constitutional Court ruled that customary forests are no longer part of state forests but fall within the territory of indigenous customary law communities, provided that their existence is constitutionally recognized.

Prior to this decision, the state, through the Forestry Law, tended to adopt a centralized modern legal approach by positioning the state as the primary authority over forest areas. As a result, many indigenous communities lost their rights to traditional territories because the state granted concession permits to plantation, mining, and forestry companies. In practice, state law often functioned as an instrument to legitimize the exploitation of natural resources while neglecting the rights of indigenous peoples.

This case demonstrates that legal unification that is overly oriented toward modern state law can threaten the existence of living law and generate social conflict. The state often imposes legal uniformity in the name of administrative certainty without considering the diversity of local legal systems. As a result, state law loses social legitimacy and triggers resistance from indigenous communities.

From a sociological perspective of law, this condition illustrates the limitations of a legalistic approach in national legal development. Soerjono Soekanto emphasizes that the effectiveness of law is strongly influenced by the compatibility of law with societal values (Soekanto, 2014). Therefore, a national legal system that ignores legal pluralism will be difficult to implement effectively because it is not aligned with the legal culture of society.

In my view, legal unification is still necessary within certain limits, particularly to ensure national legal certainty, the protection of human rights, and state integration. However, legal unification must not be carried out in an absolute and centralized manner. The state needs to adopt a model of legal harmonization that accommodates legal pluralism and provides space for customary law and religious law, as long as they do not conflict with the constitution and human rights principles.

A more responsive legal pluralism approach is more suitable for Indonesia than a rigid model of legal unification. The state must acknowledge that society possesses its own living legal mechanisms that are effective in maintaining social order. Recognition of customary law does not weaken the state; rather, it strengthens the legitimacy of national law because law is built upon the social realities of Indonesian society.

In addition, national legal development should adopt a participatory approach by involving indigenous communities, religious leaders, and local communities in the law-making process. The state must also ensure that legal harmonization is not used as an instrument of domination over certain social groups. In the context of legal modernization, the state must be able to balance legal certainty, social justice, and respect for the diversity of legal cultures within society.

Nevertheless, I also argue that not all forms of living law can be preserved unconditionally. The state still has an obligation to impose limitations when customary practices conflict with human rights, gender equality principles, or constitutional values. Therefore, legal pluralism must be understood in a dynamic and contextual manner, not as justification for all traditional practices without critique.

Thus, the tension between traditional law and modern law in national legal development should not be resolved through repressive and centralized legal unification. Instead, the state needs to build a pluralistic, responsive, and adaptive national legal system that acknowledges the existence of living law. The experience of conflicts over indigenous forest rights shows that state law that ignores social reality will lose legitimacy and trigger prolonged conflict. Therefore, national legal development in Indonesia should be directed toward harmonizing modern law with the law that lives within society in order to create a legal system that is just, effective, and rooted in the social values of the Indonesian nation.

References

Ehrlich, E. (1936). Fundamental principles of the sociology of law. Cambridge: Harvard University Press.

Galanter, M. (1976). The modernization of law. In M. Galanter (Ed.), Modernization and the law (pp. 153–165). New York: Free Press.

Constitutional Court Decision No. 35/PUU-X/2012.

Soekanto, S. (2014). Fundamentals of legal sociology. Jakarta: Rajawali Pers.

Wignjosoebroto, S. (2013). Law in society: Development and issues. Malang: Setara Press.

Rahardjo, S. (2009). Progressive law: A synthesis of Indonesian law. Yogyakarta: Genta Publishing.

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