Okla. Stat. tit. 22, § 303
A. The district attorney shall subscribe the district attorney’s name to informations filed in the district court and endorse thereon the names and last-known addresses of all the witnesses known to the district attorney at the time of filing the same, if intended to be called by the district attorney at a preliminary examination or at trial. Thereafter, the district attorney shall also endorse thereon the names and last-known addresses of such other witnesses as may afterwards become known to the district attorney, if they are intended to be called as witnesses at a preliminary examination or at trial, at such time as the court may by rule prescribe.
Upon filing of an application by the district attorney, notice to defense counsel, and hearing establishing need for witness protection or preservation of the integrity of evidence, the district court may excuse witness endorsement, or some part thereof. Such proceedings shall be conducted in camera, and the record shall be sealed and filed in the office of the district court clerk, and shall not be opened except by order of the district court.
B. Notwithstanding other provisions of law, when a law enforcement officer issues a citation or ticket as the basis for a complaint or information, for a violation of law declared to be a misdemeanor, the citation or ticket shall be properly verified if:
1. The issuing officer subscribes the officer's signature on the citation, ticket or complaint to the following statement:
"I, the undersigned issuing officer, hereby certify and swear that I have read the foregoing information and know the facts and contents thereof and that the facts supporting the criminal charge stated therein are true."
Such a subscription by an issuing officer, in all respects, shall constitute a sworn statement, as if sworn to upon an oath administered by an official authorized by law to administer oaths; and
R.L. 1910, § 5694; Amended by Laws 1980, SB 546, c. 136, § 1, emerg. eff. April 15, 1980; Amended by Laws 1991, HB 1724, c. 35, § 1, eff. September 1, 1991; Amended by Laws 1992, HB 2294, c. 68, § 1, eff. September 1, 1992; Amended by Laws 2004, HB 2445, c. 275, § 9, emerg. eff. July 1, 2004 (superseded document available); Amended by Laws 2008, HB 2819, c. 179, § 3, eff. November 1, 2008 (superseded document available).