Articles Tagged with Motion to Suppress


Prosecutors and defense attorneys regularly rely on expert witnesses to explain evidence that benefits from specialized knowledge. That may involve reviewing things like breath and blood testing procedures, DUI retrograde extrapolation, accident reconstruction, EXPERT-WITNESSES-IN-DUI-CHARGES and medical conditions that could affect impairment assessments. This article examines the different types of experts used in North Carolina DWI cases, how courts determine whether their testimony is admissible under Rule 702, and what legal considerations apply when presenting expert evidence in court.

Understanding these issues can help if you’re facing a DWI charge. Expert testimony can play a significant role in North Carolina Driving While Impaired (DWI) cases, particularly when scientific, medical, or technical issues arise.  Whether challenging the accuracy of a chemical test, questioning how an arrest was conducted, or providing insight into how a collision occurred, experts may help clarify complex evidence for a judge or jury.

While breath testing is often the go-to method for measuring a driver’s blood alcohol concentration (BAC), certain situations call for BLOOD-TESTING-DWI-CHARGES blood testing in a DWI case. Law enforcement may suspect drug involvement, or the driver may be unable (or unwilling) to provide a valid breath sample on an approved device. DUI fatalities tend to involve blood testing, as it the more accurate method to confirm the different possible sources of impairment and the respective concentrations of each.

Understanding when officers rely on blood draws in North Carolina—and how they handle chain-of-custody requirements—can help clarify whether the reported results are reliable or open to challenge.

This article explains common scenarios leading to blood tests, the difference between hospital versus EMT blood draws, how labs analyze samples using Gas Chromatography–Mass Spectrometry (GC-MS), and what legal issues can arise involving consent, patient privacy, and chain of custody. If you have questions about blood testing in a North Carolina DWI, call or TEXT the Powers Law Firm at 704-342-4357, or email Bill Powers at Bill@CarolinaAttorneys.com.

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