Our Website: br Driving Under the Influence (DUI) is the act of operating any motorized machinery afterduring consuming alcohol or other drugs. DUI or DWI are synonymous terms that represent the criminal offense of operating (or in some jurisdictions merely being in physical control of) a motor vehicle while being under the power of alcohol or drugs or a combination of both. It is a criminal offense in most countries. The Best Los Angeles DUI Lawyers can help you find ways to have the charges dropped and the case thrown altogether.