We begin with the latest on allegations of drug abuse by tv chef nigella lawson. The claim coming out in a court case from two of her former assistants charged with defrauding her and her ex-husband... See More
We begin with the latest on allegations of drug abuse by tv chef nigella lawson. The claim coming out in a court case from two of her former assistants charged with defrauding her and her ex-husband of hundreds of thousands of dollars. Today, her ex-husband taking the stand. Lama hasan has more in london. Lama? Reporter: Good morning, to you, paula. Charles saatchi is testifying in a courtroom behind me today, where the prosecution is trying to keep the focus on the case on the charges of fraud being brought against the two sisters. Elisabetta and francheska grillo are accused of spending $500,000 of their money. They're pleading not guilty. One of the sister's lawyers claims in court that nigella lawson not only knew about the spending, it was part of a tacit understanding with the sisters. In return for hiding her alleged drug use from her husband. After the very public breakdown of their marriage, saatchi sent lawson an angry e-mail, which was read in court by the judge, in which saatchi believes the sisters' account. And refers to his ex-wife as high-jella. If he is telling the truth, ms. Lawson is a habitual criminal. You want to attack their credibility to the jury doubts they're telling the truth. Reporter: A publicist for lawson told abc news, we can't comment because the court proceedings are live. Prosecutor jane carpenter has said of the alleged drug use claims, this is a totally account. And the timing is not coincidence at all. And the only reaction from celebrity chef is on social media. Tweeting on wednesday, holiday hotcake. The perfect recipe to show thanks for all your support. And to those who hughes hash tag #teamnigella. Nigella lawson is due to testify during this two-week trial at some point. But she's not due in court today. Noting that lawson will be hosting the tv "the taste," which returns to abc in january.
This transcript has been automatically generated and may not be 100% accurate.