Until now, the electric-shock gun consisted of two barbed darts attached to wires that shoot out and strike the victim, immobilizing the person with 50,000 volts of electricity, causing severe pain and intense muscle contraction.
But the wires could only extend a few metres. With the new "extended range electronic projectile," or XREP, the Taser has been turned into a kind of self-contained shotgun shell and can be fired, wire-free, from a standard shotgun, which police typically have in their arsenal already.
The first electrode hooks on to the target, the second electrode falls and makes contact elsewhere on the body, completing the circuit and activating the shock. It can blast someone as far as 30 metres away, and, unlike the current stun guns, whose shock lasts five seconds, the XREP lasts 20 seconds, enough time to "take the offender into custody without risking injury to officers."
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