Articles Tagged with How a Breathalyzer Works

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.