The Problems With Portable Breath Tests (by DaytonDUI)
In possibly the best article you will ever read on portable breath testing, DUI attorneys Justin McShane and Josh Lee describe the portable breath test devises which are used by the Ohio State Highway Patrol as a "potentially dangerous, non-specific and non-selective measures at roadside." You can find the article HERE and in the Voice for the Defense. The Problems of Fuel Cell Devices1.1. Lack of Specificity20 for EthanolAs PBTs are used for purportedly forensic purposes, their specificity for ethanol becomes a critical factor. The electrochemical detector is not specific for ethanol.21 Indeed, there is “much evidence to show” they are actually not...
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