This research aims to analyze the constitutionality of non-state symbolic expressions in the Indonesian legal system through a normative study of the phenomenon of flying the One Piece flag ahead of the anniversary of the Republic of Indonesia in 2025. This phenomenon has sparked public debate regarding the limits of freedom of expression and the state's authority in maintaining public order and state symbolism. This study uses a qualitative approach based on normative legal research with a document study design. Data was obtained through the search and analysis of primary legal materials in the form of the 1945 Constitution of the Republic of Indonesia, laws and regulations related to human rights, and Constitutional Court decisions, as well as secondary legal materials in the form of books and scientific journal articles discussing freedom of expression, symbolic expression, and the principle of proportionality. Data analysis was conducted thematically and argumentatively using the proportionality test as a framework for evaluating constitutional rights restrictions. The results of the study show normative ambiguity in the regulation of non-state symbolic expression and a tendency to apply restrictions based on state interests without consistent application of the proportionality test. These findings confirm that non-state symbolic expression is part of non-verbal freedom of expression that deserves constitutional protection. Theoretically, this research strengthens the development of constitutional law studies on constitutional rights restrictions, while practically providing normative references for the formulation of more proportional and democratic policy and law enforcement practices. Further research is recommended to combine normative and empirical approaches in order to deepen understanding of the practice of restricting symbolic expression in Indonesia.
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