At one time, an arrest for Driving Under the Influence (DUI) was not that big of a deal. Many such charges were reduced to reckless driving so that the driver did not lose his or her driver’s license.
Even when a DUI conviction did occur, there was normally a small fine and after a short period of time, the driver was allowed to drive again. In addition, breath tests were optional and there was no downside in not agreeing to take a test.
The legal blood alcohol level (BAL) was high. Finally, even if a breath test existed, the state was still required to prove you were intoxicated at the time you were driving the car.
Today, the consequences of a DUI arrest, much less a conviction, are more serious. The police have developed more sophisticated investigative tools, such as the Horizontal Gaze Nystagumus (HGN), the walk-and-turn and the one-legged stand.
These are tests that, law enforcement alleges, are designed to determine whether your ability to perform physical tasks required to drive are impaired by alcohol. Results of your performance on these tests are often recorded on video cameras affixed to police cruiser dashboards.
These recordings are admissible in court. Furthermore, Illinois law allows police to ask you to provide a breath sample into a Preliminary Breath Test (PBT) in order to help in establishing whether there is probable cause to believe you may be under the influence of alcohol.
While PBT results are admissible to help the state establish that the police officer had a basis to believe you might be under the influence, the results themselves cannot be used to establish actual guilt. People v. Rose, 268 Ill. App. 3d 174, 205 Ill. Dec. 574, 643 N.E.2d 865 (4 Dist. 1994) Moreover, the accused is entitled to refuse to take the PBT and there is no penalty for doing so. 625 ILCS 5/11-501.5