Taser International has developed a long-range wireless electro-shock projectile called '' ' XREP ' '' ( eXtended Range Electro-Muscular Projectile ) , which can be fired from any 12-gauge shotgun . It contains a small high-voltage battery . Its range is currently , but the U.S. Department of Defense , which funded development for the technology , expected delivery of a range projectile of this type from the company in 2007 . An XREP projectile was controversially used by British police during the 2010 Northumbria Police manhunt It subsequently transpired that the XREP has never been officially approved for use in the United Kingdom and the weapon system was provided unrequested to the police at the scene directly by the civilian company which distributes Taser International 's products in the UK . The company 's licence to provide Taser systems was afterwards revoked by the Home Secretary Theresa May
2010 Northumbria Police manhunt
2010 Northumbria Police manhunt
Electroshock weapon