DUI, DWI, OWI are similar and related. The stand for Driving Under the Influence, Driving While Intoxicated and Operating while Intoxicated. When alcohol is involved, the level of intoxication of the driver is determined by measuring blood alcohol content. Usually this is done with breath test. The level where you are legally driving drunk can vary by state.
Millions of drivers are arrested each year for driving under the influence of alcohol or drugs. After the arrest it is up to the district attorney’s office to file charges against the driver.
There are two types of punishments resulting from being convicted of a DUI, DWI, OWI. One is an administrative punishment and this usually results in a loss of drivers license and fines. The other type of punishment is a criminal punishment and this can result in extensive fines and time in a state prison or even federal prison. You will almost certainly want to hire a criminal defense attorney to represent you.