An expert cardiologist says Michael Jackson's doctor did not have the proper training to treat the singer for insomnia or any drug addictions.
Dr Daniel Wohlgelernter told a Los Angeles jury hearing a negligent hiring case filed by Jackson's mother against AEG Live LLC that he reached his conclusion after reviewing the credentials of Jackson's doctor.
Wohlgelernter also said former cardiologist Conrad Murray was unqualified to administer propofol, the powerful anaesthetic that killed Jackson.
The Santa Monica-based cardiologist is giving evidence for Katherine Jackson, who claims AEG failed to properly investigate and supervise Murray's care of her son.
AEG denies all wrongdoing and says it was Michael Jackson who wanted Murray to work as his doctor while he prepared for a series of comeback shows in 2009.