Counterfeit and smuggled goods are said to be one of the fuels that drive organised crime, so it is essential that products can be identified to determine if they are genuine and where they came from. Some manufacturers go to extreme lengths to incorporate hard to replicate anti-counterfeit labels or devices into their products, but it's a game of catch up and it isn't long before the criminals find a way of defeating those measures. So how about using no anti-counterfeit measures at all? This is the approach being promoted by Russell Cowburn at Imperial College in London, who is researching a method called Laser Surface Authentication (LSA), which relies on unique, microscopic identifiers already inherent in products or their packaging.