Okla. Stat. tit. 12, § 3008
When the admissibility of other evidence of contents of writings, recordings or photographs depends upon the fulfillment of a condition of fact, the question whether the condition has been fulfilled is ordinarily for the court to determine in accordance with the provisions of Section 104 of this Code. However, when an issue is raised questioning:
Laws 1978, c. 285, § 1008, eff. October 1, 1978.