Key Facts from the Fourth Hearing of TNI Defendants in the Andrie Yunus Acid Attack Case

The indictment hearing for the acid dousing case against KontraS activist Andrie Yunus was held at the Military Court II-08 in Jakarta on Wednesday (29/4) last week.

Four defendants were presented at the hearing. The first defendant is Sergeant Two Edi Sudarko, the second defendant is First Lieutenant Budhi Hariyanto Widhi, the third defendant is Captain Nandala Dwi Prasetyo, and the fourth defendant is First Lieutenant Sami Lakka.

CNNIndonesia.com has compiled the key facts related to the hearing.

Chronology

The prosecutor stated that the four defendants first encountered Andrie in March 2025 when Andrie forced his way in and interrupted a meeting on the revision of the TNI Law at a hotel in Jakarta.

“Due to that incident, the defendants considered that Andrie Yunus had insulted the TNI institution, even trampling on the TNI institution,” said the prosecutor.

Then, on 9 March 2026, the first and second defendants met and chatted about their service and personal lives. At that time, the first defendant showed a viral video of Andrie entering and interrupting the TNI Bill revision meeting in 2025.

Their conversation continued on Wednesday, 11 March. At that point, all four defendants gathered in the first defendant’s room at the BAIS TNI Mess.

According to the prosecutor, during the discussion, the first defendant expressed his anger about Andrie Yunus.

“By saying that Andrie Yunus had forced his way into the meeting room at the Fairmont Jakarta hotel which was discussing the TNI Bill, thus Andrie Yunus had trampled on the TNI institution, by Andrie Yunus along with the KontraS NGO suing the TNI Law to the Constitutional Court,” said the prosecutor.

“In addition, Andrie Yunus accused the TNI of intimidating and terrorising at the KontraS office. And the TNI was also accused of being the mastermind or actor behind the riot tragedy at the end of August 2025. Andrie Yunus also vigorously promoted anti-militarism narratives,” added the prosecutor.

At that time, the first defendant said he wanted to punch Andrie Yunus as a lesson and deterrent.

However, the second defendant said not to punch him, but to douse him with rust remover liquid instead.

“The first defendant said I would be the one to douse him; hearing the second defendant’s idea, the third defendant agreed and said if that’s the case, we’ll do it together,” said the prosecutor.

At that point, the first defendant searched for information about Andrie Yunus’s activities via Google. Andrie Yunus was known to have a routine Kamisan activity at Monas.

“Hearing that information, the third defendant said ‘alright then, tomorrow we’ll go to the location and give Andrie Yunus a lesson’,” said the prosecutor.

Then, the third defendant divided the tasks: the first and second defendants would look for Andrie Yunus at the KontraS office, while the third and fourth defendants would go to YLBHI.

Then, on Thursday (12/4), the four of them set off on two motorcycles. The first and second defendants rode together, as did the third and fourth.

Before leaving the BAIS TNI Mess, the second defendant took a used battery from the corner in front of the toilet. He then poured and mixed battery acid with rust remover liquid. That liquid was then brought along.

Upon arriving at Monas, the defendants did not find Andrie Yunus’s whereabouts, so the defendants continued searching for Andrie Yunus elsewhere.

“Upon arriving at Tugu Tani, the first and second defendants separated from the third and fourth defendants. Where the third and fourth defendants went towards YLBHI, while the first and second defendants went towards Kwitang, but before the traffic light at Atrium Senen in Central Jakarta, the second defendant turned around and entered a village road to monitor around the KontraS office,” said the prosecutor.

Around 23:00 WIB, the first and second defendants met the third and fourth defendants to suggest going home.

Then, as they were about to leave, the third defendant saw Andrie Yunus riding a motorcycle out of the YLBHI office.

The first and second defendants immediately followed Andrie Yunus, while the third and fourth defendants followed from behind.

“Right at the intersection of Jalan Salemba I and Jalan Talang in Central Jakarta, the motorcycles of the first and second defendants turned around towards Andrie Yunus’s motorcycle, and when the second defendant’s motorcycle slowed down while waiting for Andrie Yunus’s motorcycle to approach,” said the prosecutor.

At that moment, the first defendant doused the liquid he was carrying onto Andrie Yunus.

“As they passed each other, the first defendant immediately splashed the chemical liquid onto Andrie Yunus’s body, which also hit the first defendant. The first defendant immediately dropped the tumbler bottle and left the scene straight towards RSCM, while the third and fourth defendants went straight towards Jalan Pramuka to the BAIS TNI Mess,” he said.

To give a deterrent effect

The prosecutor stated that the background for the defendants’ act of dousing Andrie Yunus with chemical liquid was to give him a lesson as a deterrent so that he would not badmouth the TNI.

For their actions, the defendants are charged under Article 469 paragraph (1) of the KUHP in conjunction with Article 20 letter c of the KUHP. Subsidiary to Article 468 paragraph (1) of the KUHP in conjunction with Article 20 letter c of the KUHP. Further subsidiary to Article 467 paragraph (1) jo paragraph (2) of the KUHP in conjunction with Article 20 letter c of the KUHP.

Judge requests Andrie Yunus to be presented

The panel of judges requested that Andrie Yunus be presented as a witness in the trial.

Initially, the judge asked why Andrie Yunus, as the victim, was not proposed as a witness.

The military prosecutor then stated that the TNI Puspom investigators had submitted a summons for examination to Andrie through LPSK. The first summons was made on 27 March and was responded to by LPSK on 31 March.

“What was the response?” asked the judge.

“Essentially, it was not yet possible to take his statement as a victim witness, so we could not fulfil the request to present Andrie Yunus,” replied the prosecutor.

The prosecutor said the second summons was sent on 3 April and responded to by LPSK on 16 April.

“Essentially, LPSK stated that Andrie Yunus is currently still undergoing physical and psychological medical treatment at RSCM,” replied the prosecutor.

The judge said that in the trial, the prosecutor acts in the interests of the victim. The judge asked the prosecutor to find a solution to obtain the statement.