Most individuals would be concerned with being convicted of DUI (Driving Under the Influence) because of the fines and other penalties, including the possibility of up to 364 days of county jail time. However, often the most profound impact involves the Illinois DUI driver's license consequences.
There is a Statutory Summary Suspension (SSS) that lasts at least six months and could run for as long as three years. The latter time period applies if the driver has been in DUI trouble within the previous five years and has, with regard to the pending DUI, refused a chemical test designed to determine the Blood Alcohol Level (BAL). (625 ILCS 5/6-208.1) That is a substantial length of time and under Illinois law, the offender is not allowed to drive for any reason during the entire time period.
Although someone with a DUI in the last five years who takes the test will be suspended and not allowed to drive, the suspension will only last for one year. By contrast, a driver who has been DUI-free for at least five years and who takes a test will incur a suspension for six months and if the driver refuses the test, will be suspended for twelve months.
Those with no offense in the previous five years are entitled to drive during all but the first thirty days of their suspension, provided they agree to install an Interlock Device that will not allow the car to start until they breath into a machine that detects alcohol. This special type of permit is known as a Monitoring Device Driving Permit (MDDP).