DUI/DWI Terms and Definitions

B.A.C.
B.A.C. is an acronym for Blood Alcohol Concentration. The most definitive way to test for B.A.C. is to test blood. The most common testing method is to take samples of breath (most usually in New Jersey with a “Breathalyzer”). The alcohol in the breath is mathematically converted to a blood alcohol reading.

OUI
OUI is operating or attempting to operate a motor vehicle while under the influence of intoxicants. "Intoxicants" are any substance, including alcohol and both illegal and prescription drugs. A person is "under the influence" if their mental or physical faculties are impaired to the slightest degree, regardless of whether it affects the a actual operation of the vehicle.

Horizontal Gaze Nystagmus (HGN)
Horizontal gaze nystagmus is a naturally occurring involuntary jerking of the eyeballs as they gaze side to side. It is theorized that when a person is impaired by alcohol, the nystagmus (the jerking of the eyeballs) is magnified or pronounced.

Field Sobriety Tests
Field Sobriety Tests sometimes referred to by the acronym FSTs, are tests administered by the police to purportedly assess intoxication.

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

Ignition Interlock Devices
The courts may require first and repeat DUI offenders to use Ignition Interlock Devices. To start the vehicle, the driver must blow into the device. The vehicle will not start if the driver's blood alcohol content exceeds 0.05%.

Alcoholism
Alcoholism, also known as “alcohol dependence,” Includes four symptoms: Craving: A strong need, or compulsion, to drink. Loss of control: The inability to limit one’s drinking on any given occasion. Physical dependence: Withdrawal symptoms, such as nausea, sweating, shakiness, and anxiety, occur when alcohol use is stopped after a period of heavy drinking. Tolerance: The need to drink greater amounts of alcohol in order to “get high.”

Drunk driving penalties
penalties the court could impose are: (1) 6 months in the county jail: (2) $1,000 fine plus up to an additional 1,950 in penalty assessments; (3) 6 months driver's license suspension; (4) Your car impounded for 30 days. Second, third and fourth offenses within 7 years are punished by increasingly more harsh penalties.

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

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.