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What are the zero-tolerance DUI laws in Colorado?


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No one should drive under the influence of alcohol. Drivers who are legally allowed to consume alcohol, in other words, those aged 21 or over, must not drive when they have a blood alcohol concentration (BAC) of .08% or more.

However, those under the age of 21 are in most cases not legally permitted to consume alcohol, regardless of whether they are intending to get behind the wheel or not. This is one of the reasons why there are zero-tolerance DUI laws for drivers under the age of 21.

How do zero-tolerance laws work?

Everyone has naturally-occurring levels of alcohol in their body, and this can fluctuate depending on several factors. Therefore, if a driver under 21 is pulled over by law enforcement officials and asked to perform a Breathalyzer test, they will not be expected to have a BAC of .00%. In Colorado, the zero-tolerance BAC limit is set to .02%. If a driver under 21 is found to be above this, they will face DUI charges.

How can I defend against DUI charges?

As a driver under the age of 21, you may be able to challenge the validity of the Breathalyzer test result, especially if your BAC was recorded to be only a little above .02%. If you have a health condition such as diabetes, you may also be able to present evidence to suggest that you had an abnormally high level of naturally occurring alcohol in your body.

If you or your child is facing underage DUI charges, you must take swift action to address the charges and avoid the consequences.

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