Okla. Stat. tit. 44, § 44-842: Oaths

ARTICLE 42. Oaths.

A. Before performing their respective duties, military judges,

members of general and special courts-martial, trial counsel,

assistant trial counsel, defense counsel, assistant or associate

defense counsel, reporters, and interpreters shall take an oath to

perform their duties faithfully. The form of the oath, the time and

place of the taking thereof, the manner of recording the same, and

whether the oath shall be taken for all cases in which these duties

are to be performed or for a particular case, shall be as prescribed

in regulations promulgated by the Adjutant General. These

regulations may provide that an oath to perform faithfully duties as

a military judge, trial counsel, assistant trial counsel, defense

counsel, or assistant or associate defense counsel may be taken at

any time by any judge advocate or other person certified to be

qualified or competent for the duty, and if such an oath is taken it

need not again be taken at the time the judge advocate, or other

person is detailed to that duty.

B. Each witness before a court-martial shall be examined on

oath.