The Intoxilyzer is a device used to measure blood alcohol content (BAC) in individuals suspected of driving under the influence. It works by analyzing a breath sample, detecting the amount of alcohol present in the breath, and providing an estimate of the BAC. This tool is commonly used by law enforcement agencies during roadside sobriety checks. The results from an Intoxilyzer can be critical in legal proceedings related to driving offenses. It is designed to provide quick and reliable measurements, helping officers make informed decisions about whether to arrest a driver for suspected intoxication. Proper calibration and maintenance of the device are essential for accurate results.