Research & Studies
Arrest Procedures for Driving While Intoxicated
NHTSA · 5.6 MB
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Arrest Procedures for Driving While Intoxicated is a NHTSA's primary-source document. It documents the underlying science on alcohol, drugs, driving performance, and detection methods. Because it is the government's own source material, it sets the standard a DUI case can be measured against — not a standard the defense invented.
What this document establishes
It sets out the underlying science on alcohol, drugs, driving performance, and detection methods. As primary-source material, it lets you compare what actually happened in a case against the written standard, rather than relying on how the procedure is described in court.
How it's used in a DUI defense
The broader research library frames the science for the fact-finder — how weak individual driving cues actually are, how impairment correlates (and doesn't) with a given BAC, and where roadblock and detection methods fall short. It is the primary-source counterweight to the courtroom shorthand that treats every cue and every reading as conclusive.
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