What type of evidence is typically required to establish a DUI charge?

Blood alcohol concentration (BAC) test results are crucial evidence in establishing a DUI charge because they provide a quantifiable measure of an individual's level of intoxication at the time of driving. In Kentucky, as in many states, driving with a BAC of 0.08% or higher is legally considered impaired. A BAC test can be administered through breath, blood, or urine tests, and the results are scientifically validated, making them strong evidence in court.

While other forms of evidence, such as eyewitness accounts or surveillance footage, can provide context or support to the case, they do not offer the objective data that BAC test results do. Photographic evidence of the vehicle may show the aftermath of an incident but does not directly correlate to the driver's level of impairment. Therefore, the BAC test results stand out as the most definitive type of evidence necessary to substantiate a DUI charge.