Chicago Criminal Lawyer Blog
The Significance of BAC in DUI Prosecutions
In Illinois, as in other states, driving under the influence (DUI) charges are taken very seriously. Central to most DUI cases is the measurement of Blood Alcohol Concentration (BAC), which quantifies the amount of alcohol in a person’s bloodstream. The legal BAC limit for drivers in Illinois is 0.08%. A measurement above this threshold typically forms the cornerstone of the prosecution’s case, often leading to a presumption of impairment.
The importance of BAC evidence cannot be overstated. It directly influences the legal process from the initial arrest and charges to the court proceedings and the final outcome. However, despite its critical role, BAC evidence is not infallible. Various factors can affect the accuracy of BAC testing, providing potential avenues for challenging such evidence in court.
