Okla. Stat. tit. 10A, § 10A-1-4-305: Failure to appear without reasonable cause - Consent

to adjudication - Contempt - Warrants.

A. Failure of a person summoned as provided in this part to

respond or appear without reasonable cause constitutes the person's

consent to an adjudication of the child to be deprived.

B. If any person summoned as provided in this part fails to

respond or appear without reasonable cause, such person may be held

in contempt of court.

C. In case the summons cannot be served, or the parties served

fail to obey the same, or in any case when it shall be made to

appear to the judge that the service will be ineffectual, that the

health, safety, or welfare of the child requires that the child

should be brought into the custody of the court, a warrant may be

issued against the parent, legal guardian, custodian of the child,

or the child.