Okla. Stat. tit. 47, § 751
A.
2. A law enforcement officer, having reasonable grounds to believe that such person was operating or in actual physical control of a motor vehicle while under the influence may direct the administration of or administer the test or tests.
As used in this title, the term "other intoxicating substance" shall mean any controlled dangerous substance as defined in the Uniform Controlled Dangerous Substances Act and any other substance, other than alcohol, which is capable of being ingested, inhaled, injected or absorbed into the human body and is capable of adversely affecting the central nervous system, vision, hearing or other sensory or motor functions.
B. The law enforcement agency by which the arresting officer is employed may designate, in accordance with the rules of the Board of Tests for Alcohol and Drug Influence, hereinafter referred to as the Board, whether blood or breath is to be tested for the alcohol concentration thereof, and whether blood, saliva or urine is to be tested for the presence or concentration of any other intoxicating substance therein.
In the event that law enforcement agency does not designate the test to be administered, breath shall be the substance tested for alcohol concentration. Blood may also be tested to determine the alcohol concentration thereof in the event that breath cannot be tested to determine the alcohol concentration thereof because of the lack of an approved device or qualified person to administer a breath test or because such breath test for any other reason cannot be administered in accordance with the rules of the Board.
In the event the law enforcement agency does not designate the test to be administered, blood, saliva or urine shall be the substance tested for the presence or concentration of any other intoxicating substance or the combination of alcohol and any other intoxicating substance.
D. Any person who is unconscious or otherwise incapable of refusing to submit to a test of such person's blood or breath to determine the alcohol concentration thereof, or to a test of such person's blood, saliva or urine to determine the presence or concentration of any other intoxicating substance therein, shall be deemed not to have withdrawn the consent provided by subsection A of this section, and such test may be administered as provided herein.
An unconscious person who has been issued a citation by a law enforcement officer for one of the offenses listed in subsection A of this section is arrested for purposes of this section. The arresting officer must leave a copy of the citation with the arrested person which may be accomplished by handing it to the arrested person, or by leaving it with the personal effects of the arrested party, so as to inform the unconscious person of the arrest.
Any person who has been arrested for one of the offenses listed in subsection A of this section who is unconscious or injured and who requires immediate medical treatment as determined by a treating physician may be released on the person's own recognizance for medical reasons by the arresting officer. The arresting officer who releases an arrested person on the person's own recognizance must indicate the release on the face of the citation. Any person released on his or her own recognizance for medical reasons shall remain at liberty pending the filing of charges.
E. In addition to any test designated by the arresting officer, the arrested person may also designate any additional test to be administered to determine the concentration of alcohol, or the presence or concentration of any other intoxicating substance or the combination of alcohol and any other intoxicating substance. The cost of such additional test shall be at the expense of the arrested person.
A sufficient quantity of any specimen obtained at the designation of the arrested person shall be available to the law enforcement agency employing the arresting officer. Such specimens shall be treated in accordance with the rules applicable to the specimens obtained by an arresting officer.
Laws 1967, SB 28, c. 86, § 1, eff. January 1, 1969; Amended by Laws 1975, SB 264, c. 119, § 1, emerg. eff. May 13, 1975; Amended by Laws 1982, HB 1677, c. 273, § 4, eff. October 1, 1982; Amended by Laws 1982, HB 1699, c. 294, § 2, emerg. eff. July 1, 1982; Amended by Laws 1994, SB 741, c. 387, § 6, eff. July 1, 1995; Amended by Laws 1995, SB 127, c. 313, § 4, emerg. eff. July 1, 1995; Amended by Laws 1999, SB 695, c. 106, § 6, emerg. eff. April 19, 1999 (superseded document available); Amended by Laws 2002, HB 2721, c. 410, § 1, eff. November 1, 2002 (superseded document available); Amended by Laws 2004, SB 1407, c. 548, § 2, emerg. eff. June 9, 2004; Amended by Laws 2004, HB 2665, c. 418, § 20, emerg. eff. July 1, 2004 (repealed by Laws 2005, HB 2060, c. 1, § 59, emerg. eff. March 15, 2005) (superseded document available); Amended by Laws 2005, HB 2060, c. 1, § 58, emerg. eff. March 15, 2005 (superseded document available); Amended by Laws 2005, HB 1395, c. 189, § 2, eff. November 1, 2005 (superseded document available); Amended by Laws 2006, HB 2926, c. 173, § 4, emerg. eff. July 1, 2006 (superseded document available); Amended by Laws 2017, SB 643, c. 392, § 10, eff. November 1, 2017 (Laws 2017, SB 643, c. 392 held unconstitutional and lacking legal enforcablility by Hunsucker v. Fallin, 2017 OK 100, statute not amended); Amended by Laws 2019, SB 712, c. 400, § 12, eff. November 1, 2019 (superseded document available).