STUDI PUTUSAN MAHKAMAH AGUNG NOMOR 350/K/TUN/2019 PERSPEKTIF PERLINDUNGAN HAK KONSTITUSIONAL ATAS TANAH DALAM PROYEK STRATEGIS NASIONALNIM.: 22103070117Amelia SandraauthorThe implementation of National Strategic Projects (PSN) in practice often gives rise to land acquisition conflicts between the government and the community. Supreme Court Decision Number 350/K/TUN/2019 is one of the decisions related to land acquisition disputes for national development purposes. The problem in this study focuses on how the Supreme Court's legal considerations in the decision and the extent to which the protection of the community's constitutional rights to land is applied in the implementation of PSN. In addition, this study also examines whether the concept of public interest and land acquisition policies in the decision are in accordance with the principles of justice from a siyasah syariyyah perspective. Using the Normative Juridical method with a case approach and a conceptual approach, this research analysis utilizes the General Principles of Good Governance (AUPB) theory, public interest theory, and sharia law theory. Legal materials are obtained from laws and regulations, court decisions, and relevant legal literature. The results of the study indicate that Supreme Court Decision Number 350/K/TUN/2019 places more emphasis on national development interests in the implementation of land acquisition than on protecting community rights to land. From the perspective of AUPB, the decision does not fully reflect the principles of justice, openness, and accuracy because the affected community has not received optimal legal protection and participation. In addition, the concept of public interest in the implementation of the National Strategic Project (PSN) does not fully reflect the welfare of society as a whole because development interests are more dominant than protecting the rights of the affected community. From the perspective of siyasah syariyyah, land acquisition policies can indeed be justified to realize maslahah ‘ammah, but its implementation must not ignore the principles of justice (al-‘adl), protection of property rights (hifz al-mal), and the prohibition of causing harm (la dharar wa la dhirar). Therefore, this decision is considered not to fully reflect justice for the affected community.342 Hukum Tata Negara2026-05-25UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS SYARIAH DAN HUKUMThesis