DENVER (AP) — The defendant in the deadly Colorado theater shooting could be given “truth serum” under a court order issued Monday to help determine whether he is insane if he pleads not guilty by reason of insanity.

Suspect James Holmes could be required to submit to a “narcoanalytic interview” as part of an evaluation to determine if he was legally insane at the time of the July 20 shootings, Arpahoe County District Judge William Sylvester said.