LE MARS, Iowa | A psychologist must provide test data and other information to a defense expert who's conducting a second mental health evaluation of a man accused of killing his sister.

District Judge Jeffrey Neary on Wednesday ordered Dr. Angela Stokes to comply with a subpoena for the data and testing information she compiled while examining Thomas Bibler to determine if he was mentally competent to stand trial for first-degree murder and other charges.

Public defender Billy Oyadare had sought to quash the subpoena because Stokes contended that she was not allowed to distribute some of the information being sought and that the year-old information may no longer accurately depict Bibler's current mental state. Stokes had found that Bibler was competent to stand trial.

Plymouth County Attorney Darin Raymond requested the subpoena last month, saying the information was needed for Dr. Tim Kockler, a psychologist retained by the state, to complete his evaluation of Bibler.

Raymond sought the additional exam after Oyadare filed notice that Bibler may use a defense of intoxication and/or diminished responsibility. One of Kockler's tasks is to reach an opinion on whether prescription drugs affected Bibler's mental condition at the time of his sister's death.

Neary did not quash the subpoena, but rather issued a protective order requiring Stokes to provide the data and other information to Kockler, who may not copy or give that information to anyone without a court order granting permission to do so.

Bibler, 35, of Le Mars, is scheduled to stand trial for first-degree murder, willful injury and going armed with intent on Dec. 19 in Plymouth County District Court in connection with the June 11, 2016, stabbing death of his sister, Shannon Bogh, 27, of Le Mars.

Bibler is accused of assaulting Bogh in her home at 591 15th St. SW with an edged weapon. She died a short time later at the Le Mars hospital.

A witness to the stabbing identified Bibler as a suspect, and he was arrested without incident in the apartment about 30 minutes after the assault. According to court documents, Bibler has told investigators he has no recollection of what happened.

Bibler has waived his right to a jury trial and will instead have Neary decide his case. If found guilty of first-degree murder, Bibler would face a mandatory sentence of life in prison without parole.