Illinois DUI Laws, Fines, and Consequences
Learn about the penalties for DUI convictions in Illinois.
By Riccola Voigt, Attorney
In Illinois, it's unlawful for a person to drive or be in "actual physical control" of a motor vehicle:
with a blood alcohol concentration (BAC) of at least .08%
while under the influence of alcohol
while under the influence of alcohol, intoxicating compounds, drugs, or a combination thereof to an extent that renders the person incapable of driving safely
with any amount of a controlled substance in the person's blood, urine, or other bodily substance, or
with a tetrahydrocannabinol (THC) concentration of five nanograms or more in the blood or ten nanograms or more in another bodily substance within two hours of driving or being in actual physical control of a vehicle.
So, basically, you can get a DUI based on actual impairment or the amount of substances (drugs or alcohol) in your system.