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Fact Check-Police in Australia are not using a ‘Brown Note’ acoustic weapon on protesters

Update October 1, 2021: Removing spokesperson’s name in paragraph 3.

Victoria Police are not using a “Brown Note” acoustic weapon on protesters in Melbourne, Australia, nor does such a weapon exist.

There is an urban legend that an ultrasound frequency has the ability to make a person lose control of their bowels (here).

Posts with the claim are visible here , here . The image’s text reads, “Victorian Police were the first force in Australia to deploy the so-called ‘Brown Note Acoustic Weapon’. The brown note is an infrasonic frequency that causes humans to lose control of their bowels due to resonance. This also causes the loss of bladder [control]. Why isn’t the [mainstream news] reporting this #freedom #Melbourneprotest.”

“Omg it’s true I just looked it up. That’s gotta be illegal and inhumane,” one person commented.

The existence of such a weapon, however, is a myth that has been debunked in the past.

Vice (here), Wired (here), CNN (here) and ABC Australia (here) are among the news outlets that have debunked the brown note myth previously.

The show MythBusters (here) also debunked the idea in a February 6, 2005 episode (here).

Police in Melbourne have not deployed such a tool against citizens protesting lockdown restrictions. A spokesperson for Victoria Police, told Reuters via email that claims about the department using the “brown note” to induce instantaneous bowel and bladder evacuation are “definitely incorrect.”

Reuters coverage of the protests in the south Australian city is visible here and here .

VERDICT

False. Victoria Police are not using “brown note” frequencies on protesters in Melbourne, Australia.

This article was produced by the Reuters Fact Check team. Read more about our fact-checking work here .

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