what he described as trivial matters. extraordinary amounts of money involved here. and it really is revealing so much about this couple and it's getting huge headlines here, of course. >> reporter: the bitter battle between chef nigella lawson and her multimillionaire ex-husband now taking a shocking turn. with new accusations of illegal drug use. in an e-mail read out in court, he accuses lawson of using cocaine and marijuana on a daily basis, allow two former personal assistants to walk awith $1 million over four years. >> you don't know what the truth is but what it does do is pretty much damage nigella lawson's reputation, whether or not it's true or not, we don't know. but now we have this story of alleged drug use, from nigella, and this could affect jobs that she has coming to her right now. >> reporter: the former assistants, sisters, are now