Va. Code DUI Laws § 18.2-267. Preliminary analysis of breath to determine alcoholic content of blood.
A. Any person who is suspected of a violation of § 18.2-266, 18.2-266.1, subsection B of § 18.2-272, or a similar ordinance shall be entitled, if such equipment is available, to have his breath analyzed to determine the probable alcoholic content of his blood. The person shall also be entitled, upon request, to observe the process of analysis and to see the blood-alcohol reading on the equipment used to perform the breath test. His breath may be analyzed by any police officer of the Commonwealth, or of any county, city or town, or by any member of a sheriff’s department in the normal discharge of his duties.
B. The Department of Forensic Science shall determine the proper method and equipment to be used in analyzing breath samples taken pursuant to this section and shall advise the respective police and sheriff’s departments of the same.
C. Any person who has been stopped by a police officer of the Commonwealth, or of any county, city or town, or by any member of a sheriff’s department and is suspected by such officer to be guilty of an offense listed in subsection A, shall have the right to refuse to permit his breath to be so analyzed, and his failure to permit such analysis shall not be evidence in any prosecution for an offense listed in subsection A.
D. Whenever the breath sample analysis indicates that alcohol is present in the person’s blood, the officer may charge the person with a violation of an offense listed in subsection A. The person so charged shall then be subject to the provisions of §§ 18.2-268.1 through 18.2-268.12, or of a similar ordinance.
E. The results of the breath analysis shall not be admitted into evidence in any prosecution for an offense listed in subsection A, the purpose of this section being to permit a preliminary analysis of the alcoholic content of the blood of a person suspected of having committed an offense listed in subsection A.
F. Police officers or members of any sheriff’s department shall, upon stopping any person suspected of having committed an offense listed in subsection A, advise the person of his rights under the provisions of this section.
G. Nothing in this section shall be construed as limiting the provisions of §§ 18.2-268.1 through 18.2-268.12.
Va. Code DUI Laws § 18.2-268.2. Implied consent to post-arrest testing to determine drug or alcohol content of blood.
A. Any person, whether licensed by Virginia or not, who operates a motor vehicle upon a highway, as defined in § 46.2-100, in the Commonwealth shall be deemed thereby, as a condition of such operation, to have consented to have samples of his blood, breath, or both blood and breath taken for a chemical test to determine the alcohol, drug, or both alcohol and drug content of his blood, if he is arrested for violation of § 18.2-266, 18.2-266.1, or subsection B of § 18.2-272 or of a similar ordinance within three hours of the alleged offense.
B. Any person so arrested for a violation of clause (i) or (ii) of § 18.2-266 or both, § 18.2-266.1 or subsection B of § 18.2-272 or of a similar ordinance shall submit to a breath test. If the breath test is unavailable or the person is physically unable to submit to the breath test, a blood test shall be given. The accused shall, prior to administration of the test, be advised by the person administering the test that he has the right to observe the process of analysis and to see the blood-alcohol reading on the equipment used to perform the breath test. If the equipment automatically produces a written printout of the breath test result, the printout, or a copy, shall be given to the accused.
C. A person, after having been arrested for a violation of clause (iii), (iv), or (v) of § 18.2-266 or § 18.2-266.1 or subsection B of § 18.2-272 or of a similar ordinance, may be required to submit to a blood test to determine the drug or both drug and alcohol content of his blood. When a person, after having been arrested for a violation of § 18.2-266 (i) or (ii) or both, submits to a breath test in accordance with subsection B or refuses to take or is incapable of taking such a breath test, he may be required to submit to tests to determine the drug or both drug and alcohol content of his blood if the law-enforcement officer has reasonable cause to believe the person was driving under the influence of any drug or combination of drugs, or the combined influence of alcohol and drugs.