Submitting to a breath test offered by a police officer has a variety of potential consequences. Of course, the question itself assumes that you have a choice – either agreeing or refusing – but do you? What is the difference between a breath test taken on the street after you are stopped by the police and the breath test offered back at the station after you have been placed under arrest for DUI? Are you required to take the physical field sobriety tests? Illinois DUI law is complex, our defense attorneys have provided guidance on these questions below.
What is the difference between a Preliminary Breath Screening Test (PBT) and an Evidentiary Breath Test?
A PBT is sometimes, not always, offered to drivers on the street before they are placed under arrest for DUI. The vast majority of PBT’s are not certified or calibrated the same way as the evidentiary breath test, which is offered at the police station. PBT’s can only be used for probable cause purposes to arrest a motorist for DUI but may not be used as evidence at trial.