Okla. Stat. tit. 12, § 12-3004: Admissibility of other evidence of contents

The original is not required, and a duplicate or other evidence

of the contents of a record is admissible if:

1. All originals are lost or have been destroyed unless the

proponent lost or destroyed them in bad faith;

2. No original can be obtained by any available judicial

process or procedure;

3. At a time when an original was under the control of the

party against whom offered, the party was put on notice, by the

pleadings or otherwise, that the contents would be a subject of

proof at the hearings and the party does not produce the original at

the hearing; or

4. The record is not closely related to a controlling issue.