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 a driver once probable cause is established. Although both tests relate to detecting alcohol, they serve different functions and carry different legal consequences.

This article explains the difference between a quick roadside test (like a PBT) and the more detailed evidentiary procedure (commonly an Intoximeter EC/IR II test), as well as the implications of refusing to cooperate at either stage. If you want to discuss an implied consent issue or need guidance on a DWI charge Mecklenburg, Union or Iredell County NC, please call or TEXT the Powers Law Firm at 704-342-4357, or email Bill Powers at Bill@CarolinaAttorneys.com. A thorough understanding of North Carolina law can clarify how your case might proceed if you encounter allegations of driving while impaired.

Table of Contents: Breath Testing in North Carolina