What Should I Do If I’m Arrested for DUI in Colorado?

You saw the flashing lights in your rearview mirror. The officer asked you to step out of the car. Now you’re sitting in a holding cell wondering how everything went so wrong so fast.

A DUI arrest in Colorado is scary. Your mind is racing with questions. Will I lose my license? Am I going to jail? How will this affect my job?

Take a breath. What you do in the next 24 to 48 hours matters more than you think. The decisions you make right now can mean the difference between a conviction that follows you for life and a defense strategy that protects your future.

Here’s what you need to know and what you need to do.

Step 1: Exercise Your Right to Remain Silent

This is the single most important thing you can do after a DUI arrest. Stop talking.

Officers are trained to get you to say things that hurt your case. Questions like “How much have you had to drink tonight?” or “Where are you coming from?” aren’t casual conversations. They’re evidence gathering.

You are not required to answer these questions. Politely decline and ask for an attorney.

Everything you say during and after the stop can and will be used against you in court. Even something as innocent as “I only had two beers” becomes a prosecution talking point.

Step 2: Understand Colorado’s Express Consent Law

Colorado has an express consent law under C.R.S. § 42-4-1301.1. By driving on Colorado roads, you’ve already agreed to submit to a chemical test (blood or breath) if an officer has probable cause to believe you’re driving under the influence.

Here’s where it gets complicated.

If you refuse the test, the Colorado Department of Revenue will automatically revoke your driver’s license for one year for a first refusal. Your refusal can also be used as evidence against you at trial.

If you take the test, the results become evidence. A blood alcohol content (BAC) of 0.08% or higher leads to a DUI charge. A BAC between 0.05% and 0.079% can result in a DWAI (Driving While Ability Impaired) charge.

Neither option is great. But having an experienced criminal defense attorney on your side can help you challenge the test results or the circumstances of the stop, regardless of which path you took.

Step 3: Contact a Criminal Defense Lawyer Immediately

This isn’t optional. A DUI charge in Colorado triggers two separate legal proceedings that run on tight timelines:

The criminal case — This is the DUI charge itself, handled in criminal court.

The DMV hearing — This is a separate administrative proceeding that determines whether your license will be suspended or revoked. You have only 7 days from the date of your arrest to request a hearing with the DMV. Miss that deadline, and you lose your right to challenge the suspension.

Seven days goes fast. An experienced DUI defense attorney can handle the DMV hearing request and start building your criminal defense simultaneously.

Step 4: Know What You’re Facing — DUI Penalties in Colorado

Colorado takes DUI seriously. The penalties escalate with each offense, and even a first-time conviction can turn your life upside down.

First-Time DUI

Under C.R.S. § 42-4-1307, a first DUI conviction carries:

• 5 days to 1 year in county jail (minimum is mandatory, though courts may suspend it under certain conditions)
• Fines of $600 to $1,000
• 48 to 96 hours of community service
• 9-month license revocation
• Mandatory alcohol education and treatment program
• Up to 2 years of probation
• Possible ignition interlock device on your vehicle

Second DUI

• 10 days to 1 year in jail (10-day minimum is mandatory)
• Fines of $600 to $1,500
• 48 to 120 hours of community service
• 1-year license revocation
• Mandatory ignition interlock device
• Level II alcohol education and therapy
• 2 to 4 years of probation

Third and Subsequent DUI

• 60 days to 1 year in jail (60-day minimum is mandatory and cannot be suspended)
• Fines of $600 to $1,500
• 48 to 120 hours of community service
• 2-year license revocation
• Mandatory ignition interlock device
• Extended probation and treatment

Felony DUI — Fourth or More Offenses

Colorado made fourth-time DUI a class 4 felony. If you have three or more prior convictions for DUI, DUI per se, DWAI, vehicular assault, or vehicular homicide, you’re facing:

• 2 to 6 years in the Colorado Department of Corrections
• 3 years of mandatory parole
• Fines of $2,000 to $500,000
• Felony criminal record

A felony DUI conviction changes everything. It affects your ability to find work, own firearms, and maintain professional licenses.

DWAI Penalties

A DWAI (Driving While Ability Impaired) is a lesser charge than DUI, but it’s still serious:

• 2 to 180 days in jail for a first offense
• Fines of $200 to $500
• 24 to 48 hours of community service
• 8 points on your driving record

Step 5: Understand the Defenses Available to You

A DUI charge is not a guaranteed conviction. There are legitimate defenses that can weaken or destroy the prosecution’s case.

Improper Traffic Stop

The officer must have had reasonable suspicion to pull you over. If there was no valid reason for the stop — no traffic violation, no erratic driving, no equipment malfunction — any evidence obtained after the stop may be suppressed.

Flawed Field Sobriety Tests

Standardized field sobriety tests (SFSTs) are notoriously unreliable. Medical conditions, uneven surfaces, poor weather, improper footwear, and officer error can all produce false results. The National Highway Traffic Safety Administration (NHTSA) has strict guidelines for how these tests must be administered, and deviations from those guidelines can undermine the results.

Inaccurate Breathalyzer or Blood Test Results

Chemical tests are not infallible. Breathalyzer machines require regular calibration and maintenance. Blood samples must be properly collected, stored, and tested following strict chain-of-custody protocols.

If the testing equipment was improperly calibrated, if the blood sample was contaminated, or if there’s a gap in the chain of custody, the results may be inadmissible.

Rising BAC Defense

Alcohol takes time to absorb into your bloodstream. If you had a drink shortly before driving, your BAC may have been below the legal limit while you were actually driving but rose above 0.08% by the time you were tested. Colorado law recognizes this as an affirmative defense.

Medical Conditions

Certain medical conditions — like acid reflux (GERD), diabetes, or certain diets — can produce falsely elevated BAC readings on breath tests. If you have a medical condition that could have affected your test results, your attorney can present this evidence.

Miranda Violations

If the officer questioned you after your arrest without reading your Miranda rights, any statements you made may be inadmissible in court.

Step 6: Don’t Make These Common Mistakes

After a DUI arrest, people often make things worse without realizing it.

Don’t post about your arrest on social media. Prosecutors can and do use social media posts as evidence.

Don’t drive on a suspended license. Driving under restraint is a separate criminal offense that will compound your legal problems.

Don’t skip your court dates. A failure to appear results in a bench warrant and additional charges.

Don’t try to represent yourself. DUI law in Colorado is complex. The interplay between criminal court and DMV proceedings, the technical science behind chemical testing, and the specific procedural rules all require experienced legal counsel.

Step 7: Contact Dawson Law Office Today

At Dawson Law Office, we’ve defended clients against DUI charges across Colorado. We understand the science behind chemical testing, the procedural requirements officers must follow, and the defense strategies that get results.

We’ll handle your DMV hearing request within the critical 7-day window, investigate the circumstances of your stop and arrest, challenge the prosecution’s evidence, and fight to protect your driving privileges, your record, and your future.

A DUI arrest doesn’t have to define the rest of your life. But you have to act fast.

Contact us today for a free, confidential consultation. Let’s talk about your case and start building your defense.