Fake online reviews have become such a menace that the UK Government has launched an investigating into online review sites to check if the information posted is 'genuine, relevant and trustworthy'. It's estimated that 81 percent of UK consumers read customer reviews or ratings and 47 percent read blogs to help make purchasing decision. Businesses have wised up to the importance of online reviews and some – not all – encourage friends or hire strangers to write reviews about they're product without actually trying it. In fact, a study by Harvard Business School showed 16 percent of Yelp's restaurant reviews were fake. We've compiled a list of five classic signs of fake reviews to help you make the best decision for your next purchase.