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São Paulo starts using anti-drone weapon to prevent aerial deliveries to prisons

RIO DE JANEIRO, BRAZIL - The weapon is large. It weighs about 12 kilos, and it looks like the stuff of sci-fi movies. But rather than bullets, it shoots laser beams.

In a demonstration, the prison guard points to the sky looking for drones. After the warning that the target has been located, the anti-drone system, which combines frequency detection and radio waves, audio, and an optical sensor, goes into action.

The device sends out a frequency that interrupts communication between the clandestine equipment and the criminal controlling it. This way, the officer is able to control the drone . . .

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