When a law enforcement officer in North Carolina suspects impaired driving, they may conduct Standarized Field Sobriety Tests (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…
Articles Posted in DUI
North Carolina DWI Implied Consent: Roadside Breath Tests vs. Official Blood or Breath Testing
North Carolina drivers who are suspected of impaired driving may undergo two main types of breath or alcohol tests: a preliminary screening at the roadside and an evidentiary test under the state’s implied consent laws. These procedures are guided by statutes like G.S. 20-16.2, which defines the expectations placed on…
North Carolina Checking Stations and Roadblocks: How DUI Checkpoints Operate Under G.S. 20-16.3A
DUI checkpoints ordinarily involve standardized patterns for stopping vehicles, as well as the use of portable breath tests (PBTs) and SFSTs – Standardized Field Sobriety Tests to assess possible alcohol consumption and appreciable impairment. North Carolina law allows law enforcement agencies to set up checking stations and roadblocks pursuant to…
PBT Portable Breath Test Calibration in North Carolina
North Carolina regulates portable breath tests (PBTs), sometimes referred to as the “breathalyzer,” through specific administrative rules and statutory provisions. Law enforcement officers regularly rely on alcohol screening devices to assess whether a driver has consumed alcohol and may be part of the “arrest decision” related to probable cause. To…
Breath Alcohol Content Screening: BAC in North Carolina
North Carolina regulates alcohol screening under a set of rules involving technical standards, operational procedures, and legal provisions that govern how breath tests are administered and how results may be used in criminal proceedings. Officers rely on portable breath alcohol content screening devices (sometimes referred to as a “PBT” or…
Understanding Retrograde Extrapolation in DUI Cases
Police and prosecutors in North Carolina regularly use breath or blood test results taken after someone has been driving to prove impairment. Questions can arise about the accuracy of the reported BAC if testing was delayed. Retrograde extrapolation attempts to estimate prior blood alcohol concentration by “back tracking,” using a…
The Science of Hangovers: What Every North Carolina Driver Should Know
The human body functions as a complex processing system, breaking down what we consume through a series of chemical reactions. Alcohol moves through this system in phases, from the first drink through the next morning. The effects of hangovers extend beyond the social hours of the night before, through sunrise,…
DUI Assessment in North Carolina: What You Need to Know
If you’re facing a DWI charge in North Carolina, you may have heard about DUI assessments. These evaluations play an important role in the legal process and can positively impact the outcome of your case. That’s because DUI assessment is considered a statutory mitigating factor in North Carolina, which means…
Understanding Fourth Amendment Rights in Traffic Stops
In the realm of criminal law, few constitutional protections are as fundamental as those provided by the Fourth Amendment. These rights, which safeguard people against unreasonable searches and seizures, are continuously interpreted and refined through court decisions. A recent North Carolina Court of Appeals case, State v. Warren Douglas Jackson,…
Lab Reports, Expert Witness & Courtroom Testimony for Criminal Charges
The United States Supreme Court recently addressed the question of whether the Confrontation Clause of the Sixth Amendment is violated when a substitute analyst provides expert witness testimony about the results of forensic testing performed by a non-testifying analyst. The Court held that when an expert, in this instance a…