Fake ID cards are undermining the Government's attempts to crack down on under-age drinking. More than a dozen firms are offering youngsters authentic-looking plastic cards for just £10. It is virtually impossible for pubs, clubs and off-licences to tell them from the real thing. Licensing minister Richard Caborn said the cards were "despicable" and has promised to investigate. Tony Payne, chief executive of the Federation of Licensed Victuallers Association, is calling for companies producing the cards to be prosecuted. He accused them of helping and encouraging people to break the law. But Ruth Taylor, head of North Yorkshire Trading Standards special investigations team, said it was hard to prosecute companies who advertised the cards for "novelty purposes"