Unless people read the newspapers, check the DUI arrests daily on the internet, or are running a background check on a particular individual, it is unlikely that people are going to find out that someone has been charged with DUI or convicted of DUI. Of course, the most likely way people are going to find out that someone has been charged with or convicted of DUI is by the defendant telling people about it. Just like anything else, the more someone says something to others, the more likely it is that people are going to find out; it is just human nature.
One of the sad facts about DUI’s is that that they are not presently expungable or sealable in Illinois. If a defendant receives supervision, it is technically not a conviction. Avoiding a conviction is important so that:
1) The defendant can later say that they have never been convicted of a crime.
2) Their license will only be suspended and not revoked.
3) They likely will not have to have SR-22 insurance, which is a much more expensive type of insurance than ordinary automobile insurance. It has to be reported to the secretary of state that they actually have insurance.