DUI/DWI Terms and Definitions

Child endangerment
Most states now have some kind of child endangerment statute. Currently, 27 states have statutes that create special sanctions for cases of driving under the influence while the offender is transporting a child at the time of the offense.

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.

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).

Excessive Drunkenness
A state of drunkenness in which a person is so far deprived of reason and understanding that he or she is incapable of understanding the character and consequences of an act.

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

DUI
DUI is driving under the influence; it is the offense of operating a motor vehicle in a physically or mentally impaired condition, especially after consuming alcohol or drugs. Generally, this is a lesser offense than driving while intoxicated.

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%.

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.)

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

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."