The credibility of a woman, who told Channel Seven's Today Tonight she saw Mercedes Corby smoking marijuana, has been questioned in court.
Heather Moore appeared on Today Tonight in December last year.
Before the interview she signed a statement saying she’d seen Mercedes Corby smoking marijuana at the Queensland property of a mutual friend.
Corby’s lawyer accused Ms Moore of never visiting the property, and making the whole thing up.
He asked her to draw a layout of the farm when she couldn’t describe some of the key features.
He also quizzed her of her $1,500 a day heroin addiction dating back 32 years.
Mercedes Corby is suing the Seven Network for defamation of the stories ran featuring her former best friend, where she was accused of being a drug dealer.