Okla. Stat. tit. 22, § 22-1089.1: State may appeal certain adverse rulings or orders

The State of Oklahoma, by and through the district attorney or

Attorney General, shall have the right to appeal an adverse ruling

or order of a magistrate sustaining a motion to suppress evidence,

quashing an information, sustaining a plea to the jurisdiction of

the court, failing to find prosecutive merit in a hearing pursuant

to Section 2-2-403 of Title 10A of the Oklahoma Statutes, sustaining

a demurrer to the information, binding the defendant over for trial

on a charge other than the charge for the original offense, or

discharging a defendant at the preliminary examination because of

insufficiency of the evidence to establish either that a crime has

been committed or that there is probable cause to believe that the

accused has committed a felony. Such an appeal shall be taken in

accordance with the procedures provided in this act.