Okla. Stat. tit. 10, § 10-7700-608

A. In a proceeding to adjudicate the parentage of a child

having a presumed father or to challenge the paternity of a child

having an acknowledged father, the court shall deny a motion seeking

an order for genetic testing of the mother, the child, and the

presumed or acknowledged father if the court determines that:

1. The conduct of the mother or the presumed or acknowledged

father estops that party from denying parentage; and

2. It would be contrary to the child's best interests to

disprove the father-child relationship between the child and the

presumed or acknowledged father.

B. In determining whether to deny a motion seeking an order for

genetic testing under this section, the court shall consider the

best interest of the child, including the following factors:

Oklahoma Statutes - Title 10. Children Page 408

1. The length of time between the proceeding to adjudicate

parentage and the time that the presumed or acknowledged father was

placed on notice that he might not be the genetic father;

2. The length of time during which the presumed or acknowledged

father has assumed the role of father of the child;

3. The facts surrounding the presumed or acknowledged father's

discovery of his possible nonpaternity;

4. The nature of the relationship between the child and the

presumed or acknowledged father;

5. The age of the child;

6. The harm that may result to the child if presumed or

acknowledged paternity is successfully disproved;

7. The nature of the relationship between the child and any

alleged father;

8. The extent to which the passage of time reduces the chances

of establishing the paternity of another man and a child-support

obligation in favor of the child; and

9. Other factors that may affect the equities arising from the

disruption of the father-child relationship between the child and

the presumed or acknowledged father or the chance of other harm to

the child.

C. In a proceeding to disprove the father-child relationship

between a child over two (2) years of age and the child's presumed

or acknowledged father, the court shall appoint a guardian ad litem

to represent the child prior to ruling on a motion seeking an order

of genetic testing. If the child is under two (2) years of age, or

if the proceeding is brought under subsection B of Section 7700-607

of this title, the court may, at its own discretion or upon request

by any party, appoint a guardian ad litem to represent the child.

D. If the court denies a motion seeking an order for genetic

testing, it shall issue an order adjudicating the presumed or

acknowledged father to be the father of the child.