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24 Alb. L.J. Sci. & Tech. 211 (2014)
Flawed Blood Tests: The DUI Exception to Admissible Evidence

handle is hein.journals/albnyst24 and id is 217 raw text is: FLAWED BLOOD TESTS: THE DUI EXCEPTION TO ADMISSIBLE EVIDENCE Okorie Okorocha* TABLE OF CONTENTS I. THE CALIFORNIA LEGAL REQUIREMENTS FOR BLOOD ALCOHOL TESTING: ............................ 212 II. BLOOD ALCOHOL TESTING ....................... 212 A. The Law Governing Laboratories ................212 B. The Law Governing Admissible Evidence: Relevance Requires Reliability ...............213 1. The California Rule (Kelly or Kelly-Frye)...............213 2. The U.S. Supreme Court Rule (Daubert)...............214 3. Expert Testimony Requires Reliable Methodology ................ ..............214 4. Single Column Gas Chromatography Has Been Held to Be Unreliable .................. .... 214 III. THE FUNDAMENTALS OF GAS CHROMATOGRAPHY FOR BLOOD ALCOHOL ANALYSIS ............................ 215 IV. SINGLE-COLUMN GAS CHROMATOGRAPHY USED IN COURTS . ........................................223 A. Dual-column Gas Chromatography for Blood Ethanol Quantification Has Been Adopted by Several National Forensic Scientist Organizations .... 225 B. Manufacturers Have Also Indicated That Their Gas Chromatographs Used for Blood Ethanol Analysis Must Be Performed Using a Dual-c umn Method......226 1. Perkin Elmer, Inc., with Restek Columns Recommendation: .............................. 226 2. Agilent Technologies Recommendations:............ 227 C. Widespread Requirement of Dual-column GC, As *Okorie Okorocha is an intoxication test evidence expert witness and has qualified as an expert in 29 California Counties. He is also the only State Bar of California recognized Dual Nationally Board Certified Trial Lawyer. 211

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