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According to Science, Odor of Alcohol Not a Reliable Indicator of Intoxication
In nearly every drunk driving arrest, the police officer’s narrative report will indicate the observation of “strong odor of intoxicants.” As with all the facts, it will ultimately be up to a jury to decide the meaning of this observation, and to “weigh” it along with all the evidence in a DUI trial.
Before the case even goes to trial, the odor of intoxicating beverages can also be used by a judge in determining if there was probable cause to make the arrest, to begin with. All of this begs the question; is the odor of intoxicants a reliable indicator of anything, much less a reliable indicator of drunk driving? According to scienctific research, the answer is a resounding no!
The odor of an alcoholic beverage is, as an indicia of intoxication, nearly meaningless because “…even under optimum laboratory conditions, breath odor detection is unreliable…” The results also cannot be used to “guess” the driver’s bodily alcohol level or quantify consumed. Both statements appear in the study entitled Police Officers’ Detection Of Breath Odors From Alcohol Ingestion by Herbert Moskowitz, Marcelline Burns, and Susan Ferguson that appeared in Accident Analysis Prevention 31 (1999) 175-180.