Okla. Stat. tit. 43A, § 43A-4-105: Service of court citation, order or process - Return -

Effect.

Any citation, order or process required by law to be served on a

consumer of a facility within the Department of Mental Health and

Substance Abuse Services shall be served only by the executive

director in charge or by someone designated by the executive

director. Return to the court from which the citation, order or

process was issued shall be made by the person making the service.

The service and return shall have the same force and effect as if it

had been made by the sheriff of the county.