Objective: Terror is different from war; acts of terrorism are not subject to the procedures of warfare because the implementation is always sudden and the target victims are often civilians who are in crowded places. In early 2018, the tragedy of terrorism inmates at the Mobile Brigade Command Detention Center (Mako Brimob) in Kelapa Dua, Santa Maria Tak Bercela Church, GKI Diponegoro, Surabaya Central Pentecostal Church Sawahan Congregation, and Makassar Cathedral Church in March 2021 shook hearts with extraordinary horror. In an instant, there were victims of death, trauma, injuries, and lifelong disabilities. So that this can be categorized as a crime against humanity and a serious threat to the sovereignty of the Unitary State of the Republic of Indonesia.
Purposes of the Research: This research aims to examine and discuss the process of proving participation in the crime of terrorism in Indonesia.
Methods: This type of research is normative juridical research, conducted by examining library materials or secondary data using a statutory and conceptual approach.
Results and Discussion/Value: Judges play a crucial role in establishing justice during the proof process in the trial of terrorist crimes since the criminal act of terrorism has expanded and taken on multiple interpretations in the law. In order to convict a suspect as a result of an actual act and not just a notion or an ideology that cannot be used as an error, participation must be properly evaluated before labeling the suspect as the culprit in this case.