arking your cards: The DNA gun that can invisibly tag criminals for weeks after a rio Read more: http://www.dailymail.co.uk/sciencetech/article-2268038/DNA-gun-invisibly-tag-criminals.

t may look more like a high tech water pistol or something out of a sci-fi film than the latest weapon in the fight against crime.
But an innovative new tagging system using a gun and DNA pellets could make it easier for police to mark the cards of even the most volatile criminal.
Unlike a taser or gun that fires real bullets, the weapon won't hurt a suspect or render them incapacitated so that officers can pounce.
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Latest gadget: UK-based company Selectamark has unveiled a new weapon in the fight against crime - a gun that fires DNA pellets to mark suspects for identification at a later date during volatile police situations

Instead, it will enable police to stay at a safe distance during trouble and identify criminals and arrest criminals days or even weeks after an incident.
The High Velocity DNA Tagging System, designed for use by police forces and the military by Kent-based firm Selectamark, fires small soft green pellets containing the transparent material at a target from as far away as 40 metres.
Each pellet, which weighs less than a gram and is effectively like a paintball, contains a unique DNA code which could remain on the target for weeks.