Legally Reviewed by Shazam Kianpour on August 25, 2026
Colorado ramps up DUI enforcement every year around the Fourth of July, with extra patrols, sobriety checkpoints, and a multi-agency campaign that runs for roughly a week around the holiday. Drivers who plan to have even a couple of drinks before getting behind the wheel should expect a heavier police presence than on an ordinary weekend.
At Shazam Kianpour & Associates, P.C., we have represented Colorado drivers charged with DUI during holiday enforcement periods for years, and we have seen firsthand how these campaigns change the odds of getting pulled over.
A Look Back: Colorado’s Fourth of July DUI Enforcement Push
If you are planning on attending a Fourth of July barbecue or any other related festivity over the coming days, you better be prepared for extra DUI enforcement.
In fact, the Colorado State Patrol (CSP), Colorado Department of Transportation (CDOT), and local law enforcement departments have started their Fourth of July DUI enforcement period, which includes increased police patrols and sobriety checkpoints.
In one recent enforcement period, Colorado law enforcement agencies teamed up over the days surrounding the holiday to target impaired drivers as part of Colorado’s “The Heat is On” DUI enforcement campaign, which consists of several increased enforcement periods throughout the year.
During that same year’s Summer DUI Blitz, which ran in the weeks before the holiday, police reported 584 DUI arrests statewide, an increase from the year before. Numbers like these are typical of what Colorado agencies report each summer, and they illustrate why the holiday period draws so much additional patrol activity.
So if you plan to have a couple of drinks this Fourth of July, arrange a designated driver beforehand. If you find yourself caught up in a DUI stop during a holiday crackdown, remember that you still have rights, including the right to decline certain roadside tests.
How Colorado’s Year-Round DUI Enforcement Periods Work
The Fourth of July push is one of several coordinated enforcement periods Colorado runs each year under CDOT’s broader impaired-driving campaign. Similar periods surround Labor Day, Thanksgiving, New Year’s, and other high-travel holidays. During these windows, CSP and local departments increase patrol staffing, add sobriety checkpoints in high-traffic corridors, and coordinate messaging encouraging drivers to plan ahead for a sober ride home.
These periods are publicized in advance, and law enforcement agencies often issue press releases about arrest totals once a campaign ends. The stated goal is deterrence: agencies want drivers to know the odds of encountering a checkpoint or extra patrol are higher during these windows.
Sobriety Checkpoints: What Drivers Should Know
Colorado permits sobriety checkpoints as long as they follow specific procedural requirements, including advance public notice and a neutral, pre-set formula for which vehicles get stopped. A checkpoint stop is brief unless an officer develops reasonable suspicion of impairment based on what they observe, such as the odor of alcohol, slurred speech, or admissions made during the stop.
At a checkpoint or a routine traffic stop, you are required to provide your license, registration, and proof of insurance. Beyond that, Colorado’s implied consent law requires drivers to submit to a chemical test, breath or blood, once they are lawfully arrested on suspicion of DUI, but field sobriety exercises performed roadside before an arrest are generally voluntary.
Your Rights During a Colorado DUI Stop
Drivers stopped on suspicion of DUI in Colorado have several rights worth understanding before the holiday season arrives.
- The right to remain silent beyond providing basic identifying documents.
- The right to decline voluntary roadside coordination exercises in many circumstances, though refusing a post-arrest chemical test can carry separate administrative consequences.
- The right to legal representation before answering substantive questions about where you were coming from or how much you had to drink.
Exercising these rights calmly and respectfully does not, by itself, give an officer additional grounds to arrest you, though how you interact with an officer can still become part of the record.
Penalties for a Colorado DUI Conviction
Colorado treats a first DUI conviction as a misdemeanor, but the consequences can still include license consequences, fines, mandatory alcohol education or treatment, and in some cases jail time. Penalties can increase substantially for a second or subsequent offense, or when a blood alcohol content well above the legal limit is involved. Because these cases carry both criminal and administrative consequences through the Department of Revenue, the two tracks often need to be addressed separately.
Frequently Asked Questions About Fourth of July DUI Enforcement
Are sobriety checkpoints legal in Colorado?
Yes, as long as the checkpoint follows required procedures, including advance public notice and a neutral formula for selecting which vehicles are stopped, rather than officers choosing vehicles at their own discretion.
Do I have to perform roadside sobriety tests if I am stopped?
Roadside coordination exercises performed before an arrest are generally voluntary in Colorado. A chemical breath or blood test required under the state’s implied consent law only applies once you have been lawfully arrested.
What happens if I refuse a breath or blood test after arrest?
Refusing a post-arrest chemical test in Colorado can trigger administrative license consequences through the Department of Revenue that are separate from, and can apply in addition to, any criminal DUI case.
Does a first DUI in Colorado always mean jail time?
Not necessarily. A first offense is charged as a misdemeanor, and outcomes vary based on the facts of the stop, the driver’s record, and how the case is negotiated or litigated. Fines, license consequences, and alcohol education are common, while jail time depends on the specific circumstances.
Why does DUI enforcement increase around holidays like the Fourth of July?
Colorado agencies coordinate extra patrols and checkpoints around high-travel holidays because historical data shows impaired driving incidents rise during these periods, and the added enforcement is intended to deter drivers from getting behind the wheel after drinking.
Shazam Kianpour has spent his career defending Colorado drivers against DUI charges, including cases that arise from holiday enforcement campaigns and sobriety checkpoints. Our firm reviews the stop, the testing procedures, and the paperwork in every case we take on.
If you were arrested during a DUI enforcement period, do not wait to get answers about your case. Contact our office to discuss what happened and what your options may be.
About the Attorney
Founder, Shazam Kianpour & Associates, P.C.
Shazam Kianpour is a Denver criminal defense attorney who has handled thousands of criminal and traffic cases across Colorado, including DUI defense. He previously served as a Colorado State Public Defender and is a member of the Colorado Bar Association and the Colorado Criminal Defense Bar.
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Shazam KianpourDenver Criminal Defense Attorney & Founder, Shazam Kianpour & Associates, P.C. — Over 10,000 criminal and traffic cases handled across Colorado.