(Received 13 February 1984; accepted 13 June 1984)
Published Online: January
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The value of urine tests for determining an equivalent blood alcohol concentration in driving under the influence (DUI) enforcement cases is reviewed from a historical, theoretical, and practical perspective. The limits of precision and accuracy that can be ascribed to urine alcohol results are demonstrated through an evaluation of actual case results wherein both a first void and a subsequent urine sample were analyzed and converted to an equivalent blood alcohol concentration (BAC) using a urine to blood conversion factor of 1.3:1.
Manager/criminalist, Bureau of Forensic Services, Sacramento, CA
Criminalist, Criminalistics Laboratory, Modesto, CA
Stock #: JFS10981J