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How does BAC impact a DUI case?

On Behalf of | Jul 15, 2026 | DUI

Drivers who are stopped by police may be asked to test their blood alcohol content (BAC). Blood alcohol content refers to the amount of alcohol in a person’s body during testing. BAC is a crucial form of evidence that the police may collect to charge a person with a DUI.

If you are stopped by the police under suspicion of drunk driving, it is important to know a few facts about Kentucky’s BAC limit and testing options:

What is the BAC limit in Kentucky? 

Like many states, Kentucky has several BAC limits. The BAC limit for anyone 21 years of age or older is .08 percent. If a BAC is .08 percent or higher, then a driver can be charged with a DUI. A driver may be charged with an aggravated DUI if their BAC exceeds 0.15 percent. A driver below 21 years of age cannot have a BAC limit of .02 or higher. 

How is a BAC limit tested?

There are several methods to test a driver’s BAC. In some cases, a driver may be asked to provide a urine or blood sample to test their BAC. However, these forms of testing are not always as accurate as breath tests. Breath tests determine a driver’s BAC by testing the alcohol content on their breath. 

Can you still be charged with a DUI if your BAC limit is low?

Even if a driver’s BAC is below the legal limit, they can still face a DUI charge. Alcohol affects everyone differently. A driver who has been drinking and has a low BAC may still endanger other drivers on the road.

A DUI case can impact a person’s immigration status. It is important to reach out for legal guidance to defend against a DUI charge.

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