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The Misleading Concept of Alcohol Tolerance in Michigan DUI Cases
Many judges, prosecutors, and defense attorneys have mistaken beliefs about alcohol tolerance. In a drunk driving trial, these mistaken beliefs can lead to misleading arguments which might further lead to wrongful convictions. A recent article from the peer-reviewed science journal article Psychopharmacology[i] helps support a defense lawyer’s attempt to preclude a wrongful conviction based on these misleading arguments.
Generally speaking, most drunk driving trials include observations of the police leading up to the arrest and a subsequent breath or blood test, generically called a “chemical test.” Therefore, winning a drunk driving trial requires reasonable doubt as to both.
Issue With Alcohol Tolerance
There are many ways to approach the defense of a drunk driving crime, and a defense should always be matched to the facts and science of a particular case. However, one way to explain to jurors that there is a reason to doubt the chemical test is to show that there is a disparity between the breath or blood test result and the physical and mental condition of the driver. This might occur in cases where the driver performs well on the field tasks, such as the one-leg stand or walk and turn. This evidence, usually collected at the roadside, is often referred to as the “observational evidence.”