Okla. Stat. tit. 21, § 21-1040.18: Trial - Evidence

(a) The court shall conduct the trial in accordance with the

rules of civil procedure applicable to the trial of cases by the

court without a jury.

(b) The court shall receive evidence at the trial, including the

testimony of experts, pertaining, but not limited, to:

(1) whether, to the average person, applying contemporary

community standards, the dominant theme of the mailable matter taken

as a whole is to prurient interest;

(2) the artistic, literary, scientific and educational merits of

the mailable matter considered as a whole;

(3) the intent of the author and publisher in preparing, writing

and publishing the mailable matter;

(4) the appeal to prurient interest, or absence thereof, in

advertising or other promotion of the mailable matter.