2005 Missouri Revised Statutes - § 577.021. — Chemical testing authorized, admissibility.

577.021. Any state, county or municipal law enforcement officer who has the power of arrest for violations of section 577.010 or 577.012 and who is certified pursuant to chapter 590, RSMo, may, prior to arrest, administer a chemical test to any person suspected of operating a motor vehicle in violation of section 577.010 or 577.012. A test administered pursuant to this section shall be admissible as evidence of probable cause to arrest and as exculpatory evidence, but shall not be admissible as evidence of blood alcohol content. The provisions of section 577.020 shall not apply to a test administered prior to arrest pursuant to this section.

(L. 1993 S.B. 167, A.L. 1996 H.B. 1169 & 1271 merged with S.B. 722, A.L. 2001 H.B. 302 & 38)