Simisic Sound Cannon Testimony Names Vucicevic, Djukanovic
Eko Straza founder Bojan Simisic was questioned at the Mali Zvornik border crossing on orders from Belgrade's prosecution, and his movement says he named who first spoke live about the sound cannon.
Bojan Simisic, founder of the movement Eko Straza, was questioned on the night before August 1, 2026, at the border crossing near Mali Zvornik as he entered Serbia from a business trip abroad. Inspectors from the Criminal Police Directorate’s Service for Combating Terrorism and Extremism took his statement on orders from the Higher Public Prosecutor’s Office in Belgrade. The subject was the claim that a sound cannon was used at the March 15, 2025 protest in Belgrade.
Simisic gave the statement as a private citizen and was released as soon as it was taken, with his phone left untouched. A day later, two different accounts of what he actually said are circulating: one from his movement, the other from media citing an unnamed source, and the two do not match.
What Eko Straza Says Happened
The movement says its president told inspectors what he personally knew about the events, and in doing so named the people who first spoke about the sound cannon live on air.
“Bojan gave a statement about his own knowledge of the event, including the fact that Dragan J. Vucicevic and lawyer Vladimir Djukanovic were the first to speak publicly and live about the use of the sound cannon on Informer television, implying that they are the ones the prosecution should question about their knowledge. He also referred to the analysis by the organization Ear Shot and their expert assessment of what happened.”
The same statement adds that the inspectors and border police behaved correctly throughout. According to the movement, the name of the Informer editor and the name of lawyer Vladimir Djukanovic entered the record as people the prosecution should call in next.
What Novosti and B92 Are Reporting
Citing a well informed source, Novosti and B92 report that Simisic told inspectors he was not at the protest that day and was not even in the country. According to the two outlets, he said he only had secondhand knowledge, passed on by activists from his own movement. Both report frame the statement as an admission from a man who spent months talking about something he never actually saw.
Neither the prosecution nor the Interior Ministry (MUP) has disclosed the contents of the transcript. Everything known about the conversation comes either from the statement issued by Simisic’s side or from an unnamed source. The two versions, moreover, are not mutually exclusive: a person can say in the same breath that he was not in Belgrade that day and that he believes the prosecution should question those who spoke about the sound cannon before he did.
Why Is the Prosecution Seeking These Interviews?
The Higher Public Prosecutor’s Office in Belgrade announced on June 19, 2026, that it had asked the Service for Combating Terrorism to investigate documents from a plenum of several university faculties which, prosecutors say, referenced plans to simulate the use of a sound cannon. The same order called for interviews with everyone who had publicly claimed the weapon was used, with one specific question: how, in what way, and from whom did they obtain that knowledge.
Simisic was among the first to make the claim. If it is true that he told inspectors his knowledge was secondhand, he answered exactly what the order asked him to answer, and that answer simultaneously became a headline in the outlets now accusing him.
Several people have already been questioned. Military analyst Aleksandar Radic, the first to raise the possibility that a sound cannon was used, is now the subject of a criminal complaint and an arrest warrant, on suspicion of preparing acts against the constitutional order and security under Article 320 of the Criminal Code, and on suspicion of disclosing classified information.
Two Years of Dispute Over the Same Sound
The authorities have rejected the sound cannon claim from the start. Serbian President Aleksandar Vucic said on April 16, 2025, that the allegations about the device’s use at the March 15 rally amounted to “a pre-organized and deliberate attack on the state meant to provoke absolute instability and the violent overthrow of the constitutional order.”
On the other side sits a string of denials that kept shifting. Police first claimed they did not own LRAD 450XL devices at all, then said they had them but kept them in storage, and finally it was revealed that the devices had been mounted on vehicles that were on Belgrade’s streets that day.
Informer reported in June that Eko Straza posted a photo on its X account at 1:43 p.m. on March 15, 2025, before the protest officially began, describing it as showing sound cannons that had been found, then corrected that description to water cannons just minutes later.
The case, in other words, keeps moving, but in one direction. Summonses have gone out to those who claimed the sound cannon was used. Whether Vucicevic and Djukanovic, the two men Simisic named in the transcript, will also be called in is something the prosecution has yet to say.
