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Commonwealth v. Read— Trial Archive
evidenceevidenceforensicFirst Criminal TrialRoberts Retrograde Extrapolation ReportA forensic report by Nicholas Roberts documenting back-calculation from a 9:08 a.m. hospital alcohol result to an estimated BAC at 12:45 a.m., yielding a range of 0.135–0.292.
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Roberts Retrograde Extrapolation Report

A forensic report by Nicholas Roberts documenting back-calculation from a 9:08 a.m. hospital alcohol result to an estimated BAC at 12:45 a.m., yielding a range of 0.135–0.292.

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Provided the prosecution's scientific basis for its claim that Karen Read was intoxicated at the time O'Keefe was left at 34 Fairview Road.

Trial Record (1)