In addition to the authority heretofore exercised by the Chief Law Enforcement Officer, there is hereby delegated to him, and he is hereby authorized to issue Subpoenas, Notices of Contemplated Denial of Licensed, Notices of Contemplated Suspensions and Revocations, and to administer oaths for the purpose of examining witnesses when the need therefore arises.
Okla. Admin. Code § 45:1-7-3