3:30 p.m. update

AURORA | Jurors in the Aurora theater shooting trial are hearing from a schizophrenia expert — arguably the defense’s star witness — who deemed James Holmes insane.

Raquel Gur, a University of Pennsylvania psychiatry professor, ruled Holmes was insane and suffers from schizophrenia after she examined him in 2012.

Holmes’ defense team have said Gur is a world-renowned expert on schizophrenia.

Gur testified for about an hour Monday with the main focus on her credentials, not her diagnosis of Holmes.

According to her university’s website, Gur is a professor of psychiatry, neurology and radiology at the University of Pennsylvania Perelman School of Medicine. She also directs the neuropsychiatry section and the Schizophrenia Research Center.

District Attorney George Brauchler didn’t object to the court qualifying Gur as an expert, but Brauchler noted this was only the second time she has ever been deemed an expert in criminal court. And, Brauchler said, she doesn’t have the same forensic background as some other psychiatrists who have testified, and she isn’t board certified as a psychiatrist or a neurologist.

1:30 p.m. update

AURORA | Lawyers for James Holmes are expected to call a psychiatrist who specializes in schizophrenia later today.

Raquel Gur, a University of Pennsylvania psychiatry professor, ruled Holmes was insane and suffers from schizophrenia after she examined him in 2012.

The two sides spent much of Monday morning arguing outside the presence of the jury about what information Gur can present when she takes the stand.

Prosecutors say much of the information, including test results and some of Gur’s research into schizophrenia, wasn’t shared with them until just this week.

“This is shift-on-the-fly, last-second stuff,” District Attorney George Brauchler said.

But the defense said much of the research was included in Gur’s résumé, a copy of which they gave the prosecution several years ago.

Samour allowed much of the information but said he would allow prosecutors to make specific objections during Gur’s testimony.

Holmes is accused of killing 12 and wounding 70 others during a July 2012 attack in a packed Aurora movie theater. He has pleaded not guilty by reason of insanity; prosecutors are seeking the death penalty.

The trial is in its 43rd day and the defense is expected to wrap its case this week.