Driving Under The Influence (DUI) Legal Meaning and Definition

Here is a simplified definition of the legal term Driving Under The Influence (DUI).

Driving Under The Influence (DUI) (noun)

This term refers to the act of operating a vehicle while one's capacity to do so is compromised by the consumption of alcohol or drugs. It's most commonly associated with alcohol consumption where an individual's blood alcohol content exceeds the legally permissible limit, often defined as 0.08 to 0.10 percent of alcohol by weight in the blood. Other forms of impairment, such as the effects of certain drugs, can also classify as being "under the influence." Although the specifics can differ based on local laws, DUI charges often apply even if an individual is in control of a stationary vehicle with the engine switched off.