Utah Code § 57-2-16: Subpoena to subscribing witness.

Upon the application of any grantee in any conveyance required by law to be recorded, or of any person claiming under such grantee, verified under the oath of the applicant, that any witness to such conveyance residing in the county where such application is made refuses to appear and testify touching the execution thereof, and that such conveyance cannot be proved without the subscribing witness's evidence, any officer authorized to take the acknowledgment or proof of such conveyance may issue a subpoena requiring such witness to appear before such officer and testify touching the execution thereof.