Okla. Stat. tit. 12 § 1189
When the plaintiff excepts, the sureties shall appear for justification before the judge of the district court or the county judge of the county in which the action is brought, at a time and place to be mentioned in the notice given by the plaintiff, and may be examined on oath on the part of the plaintiff touching their sufficiency, in such manner as the judge in his discretion may think proper. The examination shall be reduced to writing and subscribed by the sureties, if required by the plaintiff. If the judge find the sureties sufficient he shall annex the examination to the undertaking, endorse his allowance thereon, and cause them to be filed with the clerk of the district court. Thereafter all the garnishees shall be discharged, and the garnishment proceedings shall be deemed discontinued, and any money or property paid or delivered to any officer shall be surrendered to the person entitled thereto, and the costs shall be taxable as disbursements of the plaintiff in the action if he recovers. The judge may in his discretion require the costs of the justification before him, including fees to the sureties as witnesses, to be forthwith paid by the party requiring justification.
Okla. Stat. tit. 12, § 1189