Lasers shed light on counterfeit whisky
St Andrews University researchers have claimed they can work out a whisky's brand, age and cask by using a ray of light the size of a human hair.
They said the test could prove if a whisky is genuine or not using a sample no bigger than a teardrop.
Counterfeiting is understood to be a major problem for the drinks industry which seeks new methods of detection.
The technique involves researchers placing a tiny amount of whisky on a transparent plastic chip no bigger than a credit card.
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