DNA spray

(Newser) - Like a free DNA spray with that? Following a spate of robberies, McDonald's outlets across Australia are installing DNA-spray devices over their doors to douse fleeing robbers with an indelible mark, the Daily Mail reports. The non-toxic spray will mark alleged thieves with a DNA code that lasts for...

(Newser) - In the Netherlands' port city of Rotterdam, crime is way down, thanks to ... a little scientific innovation. Hoping to reel in the number of robberies, police began dishing out DNA spray to beleaguered restaurants and jewelry stores. The spray, which emits a mist laced with synthetic DNA markers unique to...