DUI Cases in Adams County
Adams County is one of the busiest DUI jurisdictions in the Denver metro. State Patrol troopers, Brighton police, Thornton police, Northglenn police, Commerce City police, Westminster police, and the Adams County Sheriff's Office all file DUI cases here — most of them at the Adams County Justice Center, 1100 Judicial Center Drive, Brighton, CO 80601. Stops cluster along I-25 and I-76, the I-270 split, E-470, US-85 (Federal), and the 120th, 104th, and 88th avenue corridors.
Adams County prosecutors push hard on refusal cases and marijuana-DUI charges — Daniel has tried and won both. The 2025 Adams County not-guilty verdict on a marijuana DUI with a blood test at twice the per-se limit, and the 2024 Adams County not-guilty on a refusal DUI, both came out of this courthouse.
OverviewHow an Adams County DUI Starts: Two Cases at Once
An Adams County DUI arrest triggers two parallel proceedings: a criminal case in Adams County District or County Court, and a civil express-consent revocation before the Colorado Division of Motor Vehicles. Each has its own timeline, evidence standard, and strategy. Miss the DMV hearing window — just seven days from the date of your notice — and you may lose your license regardless of the criminal outcome.
Daniel H. Kyser handles both. He has defended Colorado DUI and DWAI charges in every metro-area county plus courts across the state, from Gunnison to Greeley, Fort Collins to Pueblo.
Types of Cases Handled
- First-offense DUI and DWAI (misdemeanor)
- Second and third DUI/DWAI (enhanced mandatory-jail cases)
- Felony DUI (fourth or subsequent conviction — C.R.S. § 42-4-1301)
- Underage drinking and driving (UDD)
- Marijuana and combined-drug DUI
- Prescription-medication impairment cases
- Refusal cases & implied-consent DMV hearings
- Vehicular assault & vehicular homicide
- Commercial driver (CDL) DUI and out-of-state license defense
Penalties at a Glance
Colorado's penalty scheme is driven by prior history and BAC. General ranges include:
- DWAI (1st): up to 180 days jail, up to $500 fine, 8 DMV points, possible probation and classes.
- DUI (1st): 5 days to 1 year jail (suspendable), $600–$1,000 fine, 9-month license revocation, interlock.
- DUI (2nd): 10 days mandatory jail (no suspension), 1-year license revocation, 2-year interlock, alcohol monitoring.
- DUI (3rd): 60 days mandatory jail, 2-year revocation, extended interlock, probation.
- Felony DUI: class 4 felony, 2–6 years prison presumptive (with mandatory aggravators possible).
Defense Strategies
A disciplined DUI defense attacks each link in the prosecution's chain:
- Stop: Was the initial traffic stop supported by reasonable suspicion?
- Investigation: Were roadside maneuvers properly instructed, performed on suitable terrain, and scored correctly under NHTSA standards?
- Arrest: Did the officer have probable cause — not just suspicion?
- Chemical test: Was the Intoxilyzer 9000 or blood draw conducted within the statutory two-hour window? Was the testing agency accredited? Were the operator certifications current?
- Disclosure: Did the prosecution timely disclose maintenance records, calibration logs, and officer body-worn camera?
Adams County DUI Cases: Local Considerations
Adams County's I-76, I-25, and US-85 corridors generate a substantial share of the county's DUI docket. Brighton, Thornton, Northglenn, Commerce City, Westminster, and Federal Heights police departments all bring cases to the same Adams County system, but each agency has its own SFST training emphasis, body-worn-camera deployment, and chemical-testing facility — differences that matter for suppression motions and for credibility issues at trial.
Bilingual proceedings are common at the Brighton courthouse. Express-consent advisements delivered in English to a Spanish-primary defendant raise specific challenges to the validity of a chemical-test refusal or consent — issues that can be raised both at the DMV express-consent hearing and as part of the criminal-case defense. Translated discovery, recorded-statement interpretation, and complaining-witness cross examination all run on a slightly different mechanic than English-only DUI cases.
The 17th Judicial District DA's Office is consistently aggressive on refusal and per-se marijuana DUI cases. That posture has practical effects on plea offers and trial readiness — a refusal or THC-positive DUI in Adams County should be defended with the assumption that the prosecution will not back away from it casually.
Your First 30 Days After an Adams County DUI Arrest
Days 1–7: The clock that matters most is the DMV's. You have seven days from your Notice of Revocation to request an express-consent hearing — miss it and the license revocation takes effect regardless of what happens in court. Request the officer's presence at the hearing, and talk to an attorney before deciding anything else.
Days 7–21: Your first court appearance (advisement) is set at the Adams County Justice Center. Defense work starts now: preserving body-worn-camera footage, requesting dash camera video, obtaining the stop report, and — in breath cases — pulling Intoxilyzer 9000 maintenance and certification records before they go stale.
Days 21–30: With discovery in hand, the suppression review begins: was the stop lawful, were the roadside maneuvers properly administered, was the chemical test conducted within the statutory window? The answers shape everything that follows — plea posture, DMV strategy, and whether this is a case to try.
At the Courthouse: Adams County Justice Center
Adams County DUI cases are filed at the Adams County Justice Center, 1100 Judicial Center Drive, Brighton, CO 80601. Misdemeanor DUI and DWAI cases are heard in Adams County Court; felony DUI and vehicular cases proceed in District Court in the same building. Arrive early — security screening lines in Brighton are longest on Monday and Tuesday morning dockets — and bring your summons, your Express Consent Affidavit, and any bond paperwork.
Recent Adams County Results
- Not Guilty — Marijuana DUI (Adams County, January 2025). Jury acquittal despite a blood test measured at twice the per-se limit.
- Dismissed — DUI 2nd Offense / Refusal (Adams County, February 2025). Case thrown out at the probable-cause hearing stage.
- Not Guilty — Refusal DUI (Adams County, February 2024). Acquitted at trial despite a chemical-test refusal.
Past results do not guarantee future outcomes. See full case results.
Frequently Asked Questions
Where will my Adams County DUI case be heard?
Most Adams County DUI cases are filed at the Adams County Justice Center at 1100 Judicial Center Drive in Brighton. Misdemeanor DUI/DWAI charges are typically heard in Adams County Court; felony DUI and vehicular cases proceed in Adams County District Court. Some municipal-code cases out of Thornton, Northglenn, Commerce City, or Westminster may be filed in those city's municipal courts instead.
What is the difference between a DUI and a DWAI?
A DUI requires substantial impairment or a BAC of 0.08% or more. A DWAI is impairment "to the slightest degree," typically with a BAC between 0.05% and 0.079%. DWAI is a lesser offense but still carries jail, points, and probation exposure.
When does a DUI become a felony in Colorado?
A fourth or subsequent DUI/DWAI conviction is a class 4 felony under C.R.S. § 42-4-1301. DUIs involving serious bodily injury or death are separately charged as vehicular assault or vehicular homicide, which are always felonies.
Should I have refused the chemical test?
Colorado's express-consent law makes refusal a civil revocation (minimum one year). Whether refusal helped or hurt your case depends on the evidence — body cam, HGN results, and statements. Daniel reviews every angle to build the strongest defense available with what happened.
Can I keep driving with an interlock device?
In most first-offense cases, drivers can apply for an early reinstatement with an ignition-interlock device after an initial no-drive period. The specifics depend on BAC, refusal status, and prior history.
How long does a DUI case take in Adams County?
Most Adams County misdemeanor DUI cases resolve in three to six months, measured from the first appearance through plea or trial setting. Cases involving blood draws often run longer because lab results can take weeks, and contested cases set for jury trial can extend past six months. The DMV express-consent track moves much faster — the hearing request deadline is seven days from your notice, and the hearing itself typically follows within about sixty days.
Do I need a local Adams County DUI attorney?
You need an attorney who regularly appears at the Adams County Justice Center — courthouse familiarity matters more than office address. Each DA's office has its own charging standards, plea practices, and trial culture, and the 17th Judicial District is notably aggressive on refusal and marijuana DUI cases. Daniel has tried DUI cases to not-guilty verdicts in Brighton and handles Adams County dockets regularly from his Denver Tech Center office.
Will I have to appear in person for every Adams County court date?
Not necessarily. For many misdemeanor settings, your attorney can appear on your behalf or arrange a virtual appearance, depending on the judge's practices and the stage of the case. Critical hearings — advisement, motions, plea, and trial — generally require personal appearance. If you live out of state or far from Brighton, raise this early; appearance logistics are often manageable with advance planning.
Request Free Adams County DUI Consultation Call 303-831-6111