5 live Breakfast - 07/09/2010

An exclusive investigation into street drugs, with senior police officers and drug dealers. Police are warning that drug dealers are increasingly using a "lethal cocktail" of "dangerous" and "unpredictable" substances to bulk out recreational drugs. Dealers have told 5 live Breakfast they've used horse tranquilliser, rat poison and even cut glass to maximise profits. Plus all the main news from the UK and around the world with Nicky Campbell and Shelagh Fogarty, including travel, sport and business.