In this clip from FOX25 News Boston Molly Line shows the use of "The Rumbler," a low frequency sound device by Boston Police to complement their sirens. They are used to alert motorists that the police are on an emergency call. The same kind of technology is being used as electrical harassment weapons by corporations, organized crime and other interested parties to discredit and to disable their critics, and unpopular persons in general. Mass state law prohibits possession of such devices for non law enforcement purposes. See Mass General Laws Chapter 140, Section 131 J.
With New Device, Police Shake, Rattle and Roll
D.C.'s High-Tech 'Rumbler' Siren Emits a Low-Frequency Vibe You Can Feel
By Allison Klein
Washington Post Staff Writer
Monday, October 29, 2007; B01
Manufacturer's home page at
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[New article at]
Police Use Invisible Technology
"the sirens 'have the distinct advantage of penetrating and shaking solid materials, allowing vehicle operators and nearby pedestrians to FEEL the sound waves"
"the sirens and speakers may cause hearing damage 'to anyone exposed to them on a daily basis."
Cops' super-sirens get ready to rumble
By BRAD HAMILTON, JOHN DOYLE and CYNTHIA R. FAGEN
New York Post
Last Updated: 7:35 AM, October 25, 2009
Posted: 2:49 AM, October 25, 2009