Okla. Stat. tit. 62, § 62-115: Issuance of bonds - Attorney General's duties

All registered bonds issued under this act shall be signed by

the Governor under the great seal of this state, and attested by the

Secretary of State and the State Treasurer. Facsimile signatures

and seals may be used as provided in the Registered Public

Obligations Act of Oklahoma. The bonds shall have endorsed thereon a

certificate signed by the State Auditor and Inspector and Attorney

General of the state, showing that such bond is issued pursuant to

law and is within the debt limit. It shall also be the duty of the

Attorney General as ex officio bond commissioner of the State of

Oklahoma to examine into and pass upon any registered bonds so

issued, and such registered bonds, when declared by the certificate

of said bond commissioner to be issued in accordance with the forms

of procedure provided by him, shall be incontestable in any court in

the State of Oklahoma.