Expert Testimony Regarding Impairment

Published for NC Criminal Law on June 09, 2010.

Rule 702(a1) was enacted in 2006 (effective for hearings held August 21, 2006 or later) to render admissible two types of expert testimony on the issue of impairment:  (1) testimony regarding the results of a Horizontal Gaze Nystagmus (HGN) test; and (2) testimony from a certified Drug Recognition Expert (DRE) regarding whether a person is ... Read more

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