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Police”s Sonic Weapon Could Cause Hearing Loss

The police have bought 12 Acoustic Hailing Devices (AHD) at a cost Tk 50 lakh each for the purpose of driving away protesters. Although it is a non-lethal weapon, the AHDs give out a piercing sound, which, health experts say, can seriously damage hearing of people within a 1km radius. AHDs allow law enforcers the