Flemish students develop straw that tells you your drink is spiked! (VIDEO)

Recent reports about drink spiking have raised interest in methods to detect your drink has been tampered with out on the town.  Five students from UCLL (University College Leuven-Limburg) have developed a straw that will change colour when in contact with drugs.  The invention is grabbing attention in the media in Germany and the Netherlands, and a Dutch music festival has even enquired about a purchase.  At the minute the straws are all sold out, but the enterprising students sense a business opportunity. Report: Pascale Mertens.