Dr Paul White was repeatedly questioned about the ways in which Dr Conrad Murray had broken guidelines and rules in his treatment of Jackson.
White acknowledged that the type of pulse monitor that Murray was using on Jackson was inadequate to monitor the singer when the physician left the room.
Murray, who has pleaded not guilty to involuntary manslaughter, has acknowledged he was giving Jackson doses of the anaesthetic propofol in the singer’s bedroom as a sleep aid.
He told police that he left Jackson’s room for two minutes on June 25, 2009, and returned to find the pop superstar unresponsive.
White said he would not have given Jackson propofol in the way that Murray had done. The retired anaesthetist also said he would not leave the room if he were treating a patient who had indicated he liked to inject propofol into himself, as Murray claims Jackson had told him.
Judge Michael Pastor had to interrupt testimony and admonish White after he repeatedly referenced conversations he had with Murray. The judge has excluded testimony about those discussions.
Pastor warned White not to try to bring up the conversations or other excluded information again.
Deputy district attorney David Walgren questioned White about the circumstances of Murray’s care based on his interview with police two days after Jackson’s death.
White told jurors last week he believes all the evidence in the case shows that Jackson must have self-administered propofol when Murray left the room.
Walgren and White noted the unique circumstances of the case.
“Have you ever administered propofol in someone’s bedroom?” Walgren asked.
“No, I have not,” White replied.
“Have you ever heard of someone doing that prior to this case?” the prosecutor asked. “No, I have not,” White responded.
White’s testimony has put him at odds with his former colleague, Dr Steven Shafer. Shafer testified that White’s self-administration theory is not supported by the evidence in the case, in his view, and he called the theory “crazy” during his testimony earlier this month.