State v. Bollman
Annotate this CaseBefore being arrested for DUI, Richard Bollman underwent the horizontal gaze nystagmus (HGN) test. Bollman was subsequently convicted of his fifth DUI offense, a felony, after a jury trial. The Supreme Court affirmed the judgment of the district court, holding that the court did not err in (1) finding that a highway patrol trooper was qualified under Mont. R. Evid. 702 to testify as an expert about the correlation between alcohol consumption and HGN, which was the scientific basis of the HGN test; and (2) denying Bollman's motion for a mistrial based on a police officer's reference to "felony DUIs" during questioning by the State, as any prejudice from the statement was very minor, if it was prejudicial at all, and the statement did not contribute to Bollman's conviction.
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