Carolina Criminal Defense & DUI Lawyer UpdatesWitnesses with specialized knowledge beyond that of a jury may in appropriate circumstances provide “expert testimony” in North Carolina. DWI (Driving While Impaired) charges in North Carolina regularly include evidence like breathalyzer results, blood
tests, and standardized field sobriety tests.
Given the scientific, forensic, and at times highly technical aspects of impaired driving cases, testimony may include qualification in court of expert witnesses and consideration of NC Rule of Evidence 702 (the rule governing experts and expert testimony). In some circumstances, the formal process of qualification is not required if the police officer is certified by the State of North Carolina as a DRE – Drug Recognition Expert. It can, frankly, prove to be a complicated area of law.
At Powers Law Firm, our attorneys understand the impact that credible experts can have in DWI trials and how critical it is to get reliable evidence before the finder of fact. That may entail both challenging the State’s attempts to tender a police officer as an “expert” and introducing a defense expert to counter the conclusion of the State’s witness and their expert testimony.
(SFSTs) to gauge whether enough evidence exists for an arrest or further chemical testing. Roadside dexterity tests—commonly the Horizontal Gaze Nystagmus (HGN) test, the Walk-and-Turn test, and the One-Leg Stand test—remain a subject of debate. Questions arise about whether these tests are truly “standardized,” whether they reliably they measure impairment or are overly subjective, and how courts treat SFSTs as evidence.