Celebrity chef, Nigella Lawson arrives at Isleworth Crown Court in London, Wednesday, Dec. 4, 2013. Celebrity chef Nigella Lawson could face questions Wednesday about alleged drug use when she appears as a witness at the fraud trial of her former personal assistants. Lawson is due to testify as a prosecution witness against Italian sisters Elisabetta and Francesca Grillo. The pair are accused of living the high life by using credit cards loaned to them by Lawson and her ex-husband Charles Saatchi. (AP Photo/PA, Steve Parsons) UNITED KINGDOM OUT NO SALES NO ARCHIVE
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