Indonesian Military Seeks Prison for Soldiers in Acid Attack

by Rachel Morgan News Editor

Indonesian military prosecutors have sought two-and-a-half years in prison for each of four soldiers charged in connection with an acid attack on a human rights activist. The victim, 27-year-old Andrie Yunus of the KontraS rights group, suffered serious injuries that left him blind in one eye.

Details of the Assault

The attack occurred in March while Yunus was riding a motorbike. According to reports, two men on a scooter threw acid at him just after he had finished recording a podcast concerning the military’s influence on the Indonesian government.

The four defendants—Edi Sudarko, 45. Budi Hariyanto Widhi Cahyono, 43; Nandala Dwi Prasetia, 40; and Sami Lakka, 41—are members of the military’s Strategic Intelligence Agency (BAIS). They face charges of premeditated assault.

Did You Know? A recent amendment to Indonesia’s armed forces law increased the number of government ministries and state institutions where active-duty military personnel can work from 10 to 14.

Prosecution and Motive

Prosecutor Wasinton Marpaung told a military court in Jakarta that the defendants’ actions were an “extrajudicial act of revenge” that caused physical suffering to the victim and reputational damage to the military. The prosecution maintains that the soldiers acted on their own initiative rather than following official orders.

Prosecution and Motive
Yudi Abrimantyo

The motive is linked to anger regarding an incident in 2025, where Yunus and another activist interrupted a meeting held by a lawmaker to protest revisions to the country’s armed forces law. Following the arrests of the BAIS members, the head of the agency, Yudi Abrimantyo, stepped down in what officials described as a “form of responsibility.”

Expert Insight: The tension surrounding the trial venue highlights a significant debate over judicial oversight. The push for a civilian trial suggests that the choice of court could be seen as a deciding factor in whether the proceedings are perceived as a transparent pursuit of justice or an attempt to manage the military’s public image.

Legal Implications and Next Steps

The case has sparked calls from Yunus and other activists to move the trial to a civilian court. This demand stems from concerns regarding potential cover-ups in a landscape where attacks on activists are rarely punished.

The outcome of these proceedings could influence how individual military members are held accountable for unauthorized actions. The decision regarding the trial’s venue may serve as a significant indicator of how the Indonesian legal system handles military involvement in civilian-facing crimes.

Frequently Asked Questions

What happened to Andrie Yunus?

Andrie Yunus, a 27-year-old member of the KontraS rights group, was attacked with acid by two men on a scooter while riding a motorbike in March, leaving him blind in one eye.

Indonesian activist Andrie Yunus attacked with acid | ABC NEWS

Who is being prosecuted in this case?

Four members of the military’s Strategic Intelligence Agency (BAIS)—Edi Sudarko, Budi Hariyanto Widhi Cahyono, Nandala Dwi Prasetia, and Sami Lakka—are charged with premeditated assault.

Why did the soldiers allegedly attack the activist?

The prosecution contends the soldiers acted on their own initiative due to anger over Yunus and another activist interrupting a lawmaker’s meeting in 2025 to protest changes to the armed forces law.

Should military personnel accused of crimes against civilians be tried in civilian courts?

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