Those who are arrested for DUI in Illinois must understand how long the look back period will be. As is the case with much of the law governing Driving Under the Influence, the answer is not clear because it is based upon political compromises and court interpretations of sometimes ambiguous language.
The answer depends upon to what the question pertains. Driver’s license or criminal charges? Suspension or revocation?
Begin with the criminal case. A DUI conviction can carry a sentence of up to 364 days in jail, two years of probation, a $2500 fine or any combination of the three, as it is a Class-A misdemeanor. (625 ILCS 5/11-501) The best outcome for someone who is found guilty of the DUI offense with which he or she is charged is court supervision. (730 ILCS 5/5-6-3.1)
Court supervision can never carry a jail sentence. While court supervision requires that you plead to, or are found guilty of, the offense, it is not a conviction, the latter of which requires the Illinois Secretary of State to revoke your driver’s license.