Okla. Stat. tit. 59, § 59-1457: License required

It shall be unlawful for any person, including a city, county or

state employee, to administer polygraph or other examinations

utilizing instrumentation for the purpose of detecting deception or

verifying truth of statements or to attempt to hold himself out as a

polygraph examiner or to refer to himself by any other title which

would indicate or which is intended to indicate or calculated to

mislead members of the public into believing that he is qualified to

apply instrumentation to detect deception or to verify truth of

statements without first securing a license as herein provided.