Okla. Stat. tit. 22, § 22-786: Interrogatories and cross-interrogatories

When the commission is ordered, the defendant must serve upon

the district attorney, without delay, a copy of the interrogatories

to be annexed thereto, with three (3) days notice of the time at

which they will be presented to the court or judge. The district

attorney may in like manner serve upon the defendant or his counsel

cross-interrogatories, to be annexed to the commission, with like

notice. In the interrogatories, either party may insert any

question pertinent to the issue. When the interrogatories and

cross-interrogatories are presented to the court or judge, according

to the notice, the court or judge must modify the questions, so as

to conform them to the rules of evidence, and must endorse upon them

his alterations, and annex them to the commission.