DUI/DWI Terms and Definitions

Impairment
Well known is the fact that the consumption of alcohol can cause impairment. Perhaps less recognized is that fact that impairment rises gradually at lower levels but dramatically at higher levels of blood alcohol concentration (BAC).

Public Intoxication
Public intoxication is the appearance of a person who is under the influence of drugs or alcohol in a place open to the general public. In most American jurisdictions, public intoxication is considered a misdemeanor

Drunk
Intoxication as we know it is not required for one to be guilty of drunk driving. Your condition may be enough for you to be found guilty of a drunk driving offense under the current definition of the law.

Controlled Substances
Health and other public concerns have generated detailed Federal and state regulation of the sale and possession of alcoholic beverages, tobacco products, and a wide range of other "controlled substances."

Vehicular Homicide
Vehicular homicide is the killing of another person by one’s unlawful or negligent operation of a motor vehicle.

Reasonable suspicion
The officer must have what is legally termed a "reasonable suspicion," based on something unusual that is actually observed about the way a person is driving. This is a very low standard and it can be satisfied by virtually anything which appears out of the ordinary and that might be a sign of a driver being under the influence. In addition, during holiday seasons, police officers typically set up field sobriety checkpoints where they routinely stop every driver who passes through the checkpoint.

Sleep Deprivation
Drowsy driving is greatly under reported because there is no test for it, as there is for intoxication, no clear way to identify it, and many states don't even have a code for it on their vehicle accident reporting forms.

Administrative License Revocation (ALR)
Simply put, the DMV automatically revokes your license when you are arrested for DUI as part of its duty to regulate drivers’ licenses. (The court may also take your license, and may also fine or jail you.)

Zero Tolerance Policy
Prohibition of drinking for those under the age of 21

DWI
Driving while intoxicated is the offense of operating a motor vehicle in a physically or mentally impaired condition after consuming enough to raise one’s blood alcohol content above the statutory limit, or after consuming drugs. Penalties for this offense vary widely.