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In reply to the discussion: ICE is now using LRAD to disperse crowds. How to defend against it. [View all]sl8
(17,037 posts)35. "Minnesota State Patrol uses long range acoustic device, first used by military, to disperse Maple Grove protesters"
https://www.cbsnews.com/minnesota/news/minnesota-state-patrol-long-range-acoustic-device/
Minnesota State Patrol uses long range acoustic device, first used by military, to disperse Maple Grove protesters
By Derek James
January 27, 2026 / 5:42 PM CST / CBS Minnesota
Dozens of protesters were detained Monday night after making a lot of noise outside a hotel where they believed the Border Patrol commander was staying.
Something troopers threatened to use to clear the crowd made a lot of ears perk up. It's called a "long range acoustic device," or LRAD.
Minnesota State Patrol troopers used a powerful sound system first used by the military in Maple Grove, Minnesota, to communicate and disperse noisy protesters.
"The LRAD is like a loudspeaker, but it focuses the sound in a narrow cone, so that if you're inside the cone, it's extremely loud," said retired Marine Colonel Mark Cancian, a senior adviser for the Center for Strategic and International Studies.
[...]
By Derek James
January 27, 2026 / 5:42 PM CST / CBS Minnesota
Dozens of protesters were detained Monday night after making a lot of noise outside a hotel where they believed the Border Patrol commander was staying.
Something troopers threatened to use to clear the crowd made a lot of ears perk up. It's called a "long range acoustic device," or LRAD.
Minnesota State Patrol troopers used a powerful sound system first used by the military in Maple Grove, Minnesota, to communicate and disperse noisy protesters.
"The LRAD is like a loudspeaker, but it focuses the sound in a narrow cone, so that if you're inside the cone, it's extremely loud," said retired Marine Colonel Mark Cancian, a senior adviser for the Center for Strategic and International Studies.
[...]
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I would think that Walz and mayor would be right on top of this if they did this.
bluestarone
Tuesday
#24
If it's mounted on a truck. What does bouncing the sound waves back at the truck do?
Melon
Tuesday
#32