After it was revealed that it had been used against students, Dacic displays the 'panic-inducing' sonic weapon

The Minister of Internal Affairs, Ivica Dacic, after a press conference, took journalists to the courtyard of the SIV building to show them a gendarmerie vehicle with a mounted LRAD device and to demonstrate its operation.

Members of the gendarmerie unit from Novi Sad, who had their vehicle with the LRAD device photographed near the parliament building, demonstrated how these devices work and played a pre-recorded message, which, according to Dacic, warns protesters to disperse.

The gendarmerie members fired a smaller LRAD, the LRAD 100X, and played the recorded sound.

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The acting police director, Dragan Vasiljevic, said that the voice of the commander of the gendarmerie unit was recorded on the device.

"We use it for warnings, we are not allowed to use it as a sound cannon. When it was time to demonstrate the other, larger device, the LRAD 450 XL, which was located in the aforementioned gendarmerie vehicle, a problem arose, as its battery was not working," he said.

The Serbian government used a sonic weapon to cause panic among anti-government protesters on Saturday. The sound that echoed during the Belgrade protests caused panic in the crowd, and demonstrators and some analysts are convinced it was a sonic cannon used to disperse the masses.

The acoustic cannon is a non-lethal weapon, it emits strong acoustic waves in a specific direction and can cause headaches, nausea, disorientation in affected persons, but a possible consequence is permanent hearing damage.

An acoustic cannon is a device that uses strong sound waves to achieve certain effects, usually for crowd control, deterring birds, or destroying missiles. /Telegraph/