It is no defense to a prosecution for perjury that the accused was not competent to give the testimony, deposition or certificate of which falsehood is alleged. It is sufficient that he actually was required to give such testimony or made such deposition or certificate.
Okla. Stat. tit. 21, § 495
Incompetency no defense
R.L.1910, § 2215.
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.