Blood Alcohol Concentration

November 5, 2025

Auto-Brewery Syndrome DWI North Carolina

The Limits of Chemical Certainty: The Auto-Brewery Syndrome & DWI Charges

Auto-Brewery Syndrome (ABS) remains a bit of a theoretical curiosity. It represents a measurable biochemical anomaly during which yeast or bacteria residing in the gastrointestinal tract convert carbohydrates into ethanol within the human body.

Though somewhat rare, it is medically documented, scientifically verifiable in some instances, and possibly legally consequential, at least relative to DUI charges in North Carolina.

October 22, 2025

Breath, Blood, and Bull: How the Breathalyzer Works

by Carolina Attorneys

This post continues the Breath, Blood, and Bull series, which explores how science, technology, and human judgment shape DWI enforcement in North Carolina.

The first article examined the limits of field sobriety testing. This installment turns to the machines that translate breath into evidence, using “breathalyzers.”

By unpacking how they measure alcohol, where they can fail, and how lawyers challenge their results, you’ll see why science is not necessarily as simple as a number on a printout.

February 5, 2025

Hemolysis, BAC Testing, and Criminal Charges in North Carolina

by Carolina Attorneys

Hemolysis involves the rupture of red blood cells in a blood sample. In the context of criminal charges, this can affect how accurately labs measure blood alcohol concentration (BAC). Mechanical factors like needle gauge selection, centrifugation practices, storage conditions, or simple delays can lead to hemolysis. The result may be an inflated or deflated BAC reading. For someone facing DUI charges or other criminal matters where BAC plays a role, understanding hemolysis, BAC testing, and its implications can help in reviewing the evidence.

If you have questions about the specifics of your legal matter, the legal team at Powers Law Firm is available for consultation. You may call or text 704-342-4357. You may also email Bill Powers at Bill@CarolinaAttorneys.com.

Below is a brief syllabus of the main topics covered in this document. Each entry links to a corresponding section that explains how hemolysis occurs, how labs test for BAC, and why these details may shape legal strategies.

February 2, 2025

Understanding Postmortem BAC – Blood Alcohol Concentration in North Carolina Criminal Defense

by Carolina Attorneys

This article discusses how alcohol normally travels through your body when you’re alive, how that changes once life ends, and why postmortem shifts can influence criminal defense in North Carolina. We will also explore the potential legal implications of an inaccurate or misleading BAC when the decedent—who, in criminal cases, may be considered a victim—had alcohol in their system.

By clarifying the complexities of forensic toxicology, our goal is to explain why thorough investigation and analysis by forensic toxicologists may be an essential aspect of building a defense strategy.

It is tempting to assume that the number on a lab report reflects an exact level of intoxication at the time of death, but the science behind postmortem BAC is often far more nuanced and complicated. Factors such as redistribution, laboratory processing, and even microbial activity can alter the reading—sometimes making it appear higher or lower than it actually was when the person was alive.