interpretations, such as the conversion of the sultan's land grant after the enactment of the
UUPA, further complicate the dispute resolution process.
The process of resolving the dispute through litigation, starting with a lawsuit at the
Penajam District Court, which then proceeded to the Samarinda High Court and the Supreme
Court, was unsuccessful due to issues of judicial authority. A lawsuit to the Samarinda State
Administrative Court (PTUN) was also rejected due to a formal defect, namely that the filing
exceeded the deadline stipulated in Law No. 2/2012. This research makes an important
contribution to the understanding of the absolute authority of judicial institutions and the
importance of fulfilling the formal and material requirements in filing a lawsuit. In the future, this
research is expected to provide recommendations for regulatory improvements in the land
acquisition process, as well as suggest the implementation of more efficient and fair dispute
resolution mechanisms to prevent similar disputes in other development projects, especially in
the context of former swapraja land and complex inheritance rights.
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