Police introduce military "sonic weapon" for domestic use in North America

The Toronto Star - Protesters marching at the G20 summit next month may be greeted with ear-splitting “sound cannons,” the latest Toronto police tool for quelling unruly crowds.

Toronto police have purchased four, long-range acoustic devices (LRAD) — often referred to as sound guns or sound cannons — for the upcoming June 26-27 summit, the Star has learned.

Purchased this month, the LRADs will become a permanent fixture in Toronto law enforcement, said police spokesperson Const. Wendy Drummond.

“They were purchased as part of the G20 budget process,” Drummond said. “It’s definitely going to be beneficial for us, not only in the G20 but in any future large gatherings.” Read more.