Okla. Stat. tit. 22, § 22-730: Certificate from another state to compel witness to appear

and testify - Notice, order and hearings.

A. A judge of a state court of record in another state, which

by its laws has made provision for commanding persons confined in

penal institutions within that state to attend and testify in this

state, may certify as follows:

1. There is a criminal proceeding or investigation by a grand

jury or other criminal proceeding pending in the court;

2. A person who is confined in a penal institution in this

state may be a material witness in the proceeding; and

3. His presence will be required during a specified time.

B. Upon presentation of the certificate to any judge having

jurisdiction over the person confined and on notice to the attorney

general, the judge in this state shall:

1. Fix a time and place for a hearing; and

2. Enter an order directing the person having custody of the

prisoner to produce the prisoner at the hearing.