Carolina Criminal Defense & DUI Lawyer Updates
In North Carolina impaired driving cases where retrograde extrapolation becomes relevant, chemical testing is often separated from the driving event by significant delay. 
This is most commonly seen in serious vehicular prosecutions where impaired driving serves as a predicate offense, including collision investigations involving injury or death, where scene management, medical transport, search warrant procedures, and hospital blood draws may delay specimen collection for three or more hours.
This timing gap can create an evidentiary question that prosecutors sometimes attempt to address using a technique known as retrograde extrapolation, a calculation intended to estimate a prior blood alcohol concentration based on a later chemical test.
Retrograde extrapolation relies not on statutory fiat but on biology. Whether it carries scientifically reliable, relevant evidentiary value in any individual case depends on the science of alcohol absorption, distribution, and elimination. Put simply, contrary to the assertions of some, it’s neither clear-cut nor fait accompli.
(sometimes called DUID – driving under the influence of drugs) or “drugged driving” by the general public, the forensic analysis and legal issues tend to be significantly more complex. 
a crime. If you or a loved one face charges related to Criminal Attempt in NC, understanding this distinction can be fundamental to formulating an effective defense strategy. The difference is not merely academic. It is the line that separates a “thought crime” from a felony conviction. This distinction rests primarily on two fundamental concepts. those being the required intent and the overt act.
behind BAC tests is powerful, but it is also technical, layered with protocols, human decision points, and laboratory processes that must be followed with precision. When a “drunk driving” case shifts from the roadside to the laboratory, the entire conversation changes. You move from dexterity exercises to molecular chemistry, and from visible performance to physics, gas chromatography and mass spectroscopy, both topics that an average juror would never see unless brought to life at trial by defense counsel.
table. As a Charlotte criminal defense attorney who has practiced in Mecklenburg County for more than 30 years, I can tell you this without hesitation the Wednesday before Thanksgiving through the Sunday after is one of the busiest stretches of the year for assault arrests. Add alcohol, old grievances, political arguments, and the pressure of hosting (or being hosted by) people you strategically avoid the other 51 weeks of the year, and you have a recipe for criminal charges.
offenses also taxes and therefore profits them. Is that right? Does that make sense? Should the government profit from crime? Is it OK to tax Drugs? Extortion? What about Illegal Pornography, Prostitution and Human Trafficking? Where do we, the governed, draw the line?
prosecution and defense of DWI cases in North Carolina. The first installment examined the limits of chemical testing. The second article turned to the machines that interpret alcohol breath samples into evidence, using the “breathalyzer.” This post focuses on the field sobriety tests or “SFSTs” that often precede BAC testing.
question in constitutional law. When government agents enter private property without a warrant, what happens to the evidence they obtain?
required for certain crimes. It is one of the most demanding defenses to raise, requiring a high threshold of proof.