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DUI Case Highlights from Paul Burglin San Francisco DUI Attorney - State v. Pexa

Posted on in DUI

State v. Pexa
___ N.W.2d ___, 2012 WL 6652580 (Minn.App.) (Unpublished)

Defendant’s blood-alcohol level was.09 percent about 150 minutes after driving. Due to a discovery violation, the prosecution was precluded from having its expert opine as to his BAC at the time of driving based on retrograde extrapolation.

Declaring that a “specific numerical alcohol concentration is a scientific matter" beyond the “general knowledge of a lay jury," the Court concluded it is “impossible for a lay jury to infer a precise level of alcohol concentration at a specific point in time…without the aid of a qualified expert[,]" and the trial court should have therefore dismissed the.08 or higher charge when it made the discovery order.

Had the test result been higher and/or the time between driving and testing shorter, an inference might have been permitted without expert testimony.

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