Once the DUID trial begins, the arresting officer will testify. They will explain to the court why they stopped the defendant and what evidence they uncovered during the course of the arrest. Ultimately, the arresting officer will offer all of the evidence they gathered to prove the defendant was not driving in a cautious manner consistent with how a sober person would drive.
If a DRE verified that the driver was under the influence, the DRE will also testify at the trial. The DRE will explain the 12-step verification process used to determine the defendant was under the influence of drugs at the time of arrest, divulge the results of the evidentiary chemical test to the court, and make a case for impairment by identifying the drug in the driver’s system.