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Criminal Defense · Columbia, Missouri

DWI Lawyer
Columbia, Missouri

A DWI arrest in Missouri moves fast. Within minutes, you are looking at criminal charges, a threatened driver's license suspension, and a 15-day window to protect your driving privileges before the Department of Revenue acts automatically. If you were arrested for driving while intoxicated in Columbia, Boone County, or anywhere across central Missouri, the decisions made in the first days after your arrest matter more than most people realize. Bur Oak Legal defends DWI charges across mid Missouri — one attorney, no handoffs, from the administrative hearing through trial if that's where it goes.

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Missouri Supreme Court track record
Licensed in Missouri since 2012
(573) 499-0200
Missouri DWI Law

DWI and DUI in Missouri: What the Law Actually Says

Missouri uses the term DWI — driving while intoxicated — rather than DUI. Both terms describe the same conduct, but Missouri law and Missouri courts use DWI. Under § 577.010 RSMo, a person commits the offense of driving while intoxicated when they operate a motor vehicle while in an intoxicated condition. Under § 577.012 RSMo, driving with a blood alcohol content of 0.08 percent or above is a per se violation — meaning the blood or breath test result alone is enough evidence for the charge, regardless of whether the officer observed impaired driving.

For commercial driver's license holders, the BAC threshold drops to 0.04 percent. A DWI charge can be based on alcohol, controlled substances, or any combination of intoxicants that impair the driver's ability to safely operate a vehicle.

Class B Misdemeanor — First Offense
First DWI
A first-time DWI in Missouri is typically a Class B misdemeanor — up to six months in jail and a fine of up to $1,000, plus license suspension. While it is the lowest tier, the collateral consequences — insurance increases, employment background checks, CDL disqualification — can be significant and lasting.
Class A Misdemeanor — Second Offense
Second DWI
A second DWI offense elevates the charge to a Class A misdemeanor, with increased jail exposure and mandatory minimum requirements. Missouri also imposes a 5-year license denial for certain repeat offenders. The prior offense does not have to be recent to count.
Felony — Third Offense or Aggravated Circumstances
Felony DWI
A third DWI offense — or a DWI that causes serious injury or death — can be charged as a felony in Missouri. A DWI conviction involving serious injury or death carries substantially higher sentences and is prosecuted far more aggressively. Any DWI felony conviction triggers consequences that follow a person for life.
CDL Holders
Commercial Drivers
A DWI charge carries federal consequences for CDL holders that operate independently of Missouri law. A first DWI offense can result in a one-year federal CDL disqualification, and a second offense triggers a lifetime disqualification. The lower 0.04 percent BAC threshold also applies to commercial drivers operating commercial vehicles.
License Protection

The 15-Day Administrative Hearing Window

When a Missouri police officer arrests you for DWI and your breath test or blood test shows a BAC at or above the legal limit — or you refused testing — the Missouri Department of Revenue moves to suspend your driving privileges administratively. This process runs parallel to the criminal case and operates on its own timeline.

You have 15 days from the date of arrest to request an administrative hearing. Miss that window and the suspension becomes automatic — and there is no coming back from it once the deadline passes. This is one of the most time-sensitive obligations that follows a DWI arrest, and most people do not know about it until it is too late.

At Bur Oak Legal, Chris requests that hearing immediately after being retained. The administrative hearing is a separate fight to protect your license, and it is one most people do not know they have to fight separately from the criminal charge.

The administrative hearing is also valuable for another reason: it is one of the few opportunities to question the arresting officer under oath before the criminal case proceeds. What comes out in that hearing can inform the defense strategy in the criminal matter.

What the Administrative Hearing Covers

The administrative hearing before the Department of Revenue focuses on a narrow set of issues: whether there was probable cause for the arrest, whether the implied consent law was followed correctly, and whether the test results are legally sufficient to support the revocation. These are legal questions — and they are exactly the kind of questions an experienced attorney is positioned to challenge.

Breath & Blood Tests

Refusing a Breath Test or Blood Test in Missouri

Missouri's implied consent law means that by driving on Missouri roads, you have already agreed to submit to a chemical test if lawfully arrested for DWI. Refusing a breathalyzer test or blood test is your right — but it carries consequences. A refusal triggers a one-year license revocation for a first offense, compared to a 30-day suspension for drivers who take the test and fail.

That said, refusing a test is not automatically the wrong choice, and the decision depends heavily on the circumstances of your arrest. Whether the stop was lawful, whether the officer had actual probable cause, and whether the implied consent advisory was delivered correctly are all questions that matter — and all questions an experienced DWI attorney evaluates before advising on strategy.

Blood Test vs. Breath Test: Different Challenges

Breathalyzer test results depend on the machine being properly calibrated and maintained, the test being administered according to protocol, and no interference from other compounds. Mouth alcohol, certain medical conditions, and some medications can produce readings that appear elevated. Calibration records and maintenance logs are discoverable and often worth examining.

Blood test results involve a separate chain of custody question: from the draw, to the storage, to the analysis at the lab. Any break in that chain creates a question about whether the sample tested was actually the defendant's blood — and whether it was handled in a way that preserves the integrity of the result.

Defense Strategy

Challenging the Evidence in a DWI Case

Not every DWI charge results in a conviction. The state must prove every element of the offense beyond a reasonable doubt, and there are multiple points in a DWI case where the evidence can be challenged. An experienced DWI attorney reviews the complete record — from the initial stop through the test administration — before assessing what defenses apply.

1
The Traffic Stop Itself
A police officer must have reasonable articulable suspicion to pull a vehicle over. If the stop was unlawful — if the officer lacked a legitimate basis for the detention — evidence gathered after it, including test results, may be suppressible under the exclusionary rule. The police report describes what the officer observed, but the dashcam video sometimes tells a different story.
2
Field Sobriety Testing
Field sobriety tests — the walk-and-turn, the one-leg stand, the horizontal gaze nystagmus — are administered roadside by officers and graded against standardized criteria. Fatigue, medical conditions, road surface, footwear, and officer instruction all affect performance. A result that looks like impairment in the report may have a straightforward alternative explanation that has nothing to do with alcohol.
3
Breathalyzer Calibration and Administration
Missouri's breath test equipment must be properly maintained and calibrated, and the test must be administered according to protocol. Calibration records, maintenance logs, and the officer's training records are all obtainable through discovery. A machine that has not been properly serviced or an administration that deviated from protocol creates grounds to challenge the result.
4
Blood Test Chain of Custody
Blood test evidence requires documentation of every step: who drew the blood, how it was stored, how it was transported, and how the analysis was conducted at the lab. Any break or irregularity in the chain of custody creates a foundation to challenge whether the result is reliable — and whether the sample analyzed was properly preserved.
Beyond the Courtroom

Consequences Beyond the Criminal Case

A DWI conviction in Missouri carries consequences that extend well past any sentence the judge imposes. Understanding the full picture of what is at stake — before the case is resolved — is part of building the right defense strategy.

Insurance Premiums

Insurance premiums typically increase substantially after a DWI conviction and can remain elevated for years. Missouri allows insurers to classify a DWI as a major violation and rate accordingly. Some insurers will non-renew a policy following a DWI conviction, forcing a driver into the high-risk market.

CDL Disqualification

A CDL holder faces federal disqualification rules that operate independently of Missouri law. A first DWI offense — even in a personal vehicle — can result in a one-year CDL disqualification. A second offense triggers lifetime disqualification from operating a commercial vehicle. For professional drivers, a DWI charge is effectively a career threat.

Expungement Eligibility

Missouri allows expungement of some DWI convictions, but eligibility depends heavily on how the case was resolved. A suspended imposition of sentence — where the court withholds a formal conviction pending completion of probation — is treated differently than a straight conviction and may open the expungement process sooner. First time offenders who handle their case correctly from the start preserve more options later.

Professional Licenses and Employment

A DWI conviction can affect professional licenses — nursing, teaching, commercial driving, law enforcement — depending on the licensing board's rules. It appears on standard background checks and can affect employment decisions, particularly for positions involving driving, security clearances, or work with vulnerable populations.

Why Bur Oak Legal

Defending DWI Charges Across Central Missouri

Chris Miller has appeared before the Missouri Supreme Court and won — expanding rights for Missourians in a case that changed state law. That experience in high-stakes advocacy applies directly to DWI defense, where the margin between a conviction and a dismissal can come down to a single procedural challenge or an overlooked calibration record.

Chris represents DWI clients across central Missouri — Columbia, Jefferson City, Fulton, Moberly, and surrounding communities. He handles DWI cases personally at every stage: from the administrative hearing to protect your license, through pretrial motions to challenge evidence, to trial if the case does not resolve on favorable terms. There are no handoffs, no case managers, no associates assigned to your file. Your case stays with Chris.

If you were arrested for DWI or driving while intoxicated, the best time to contact an attorney is now — before you miss the 15-day hearing deadline, before you speak with law enforcement without counsel, and before the case gets further along without someone in your corner reviewing the evidence. There is no fee unless we win. Free consultation.

Call (573) 499-0200 or use the contact form above to get a free case evaluation. Confidential. No obligation to retain.

Frequently Asked Questions

DWI Questions Answered

Missouri law uses the term DWI — driving while intoxicated — rather than DUI. Both terms describe operating a vehicle while impaired by alcohol or drugs, but Missouri courts and statutes use DWI. If you are accused of DWI in Missouri, you are facing a charge under § 577.010 or § 577.012 RSMo.
After a DWI arrest in Missouri, the Department of Revenue will move to suspend your driving privileges administratively. You have 15 days from the date of arrest to request a hearing to contest the suspension. If you do not request a hearing within that window, the suspension becomes automatic. An attorney should request this hearing immediately after being retained.
Yes. You have the right to refuse a breathalyzer test or blood test, but refusing triggers a one-year license revocation under Missouri's implied consent law — longer than the suspension for failing the test. Whether refusing is the right choice depends on the specific circumstances of your arrest.
Under § 577.012 RSMo, a blood alcohol content of 0.08 percent or above is a per se DWI offense in Missouri. For commercial driver's license holders, the limit is 0.04 percent. A reading at or above those thresholds is treated as sufficient evidence of intoxication regardless of how the driver appeared to the officer.
A first DWI is typically a Class B misdemeanor in Missouri. Repeat offenses, DWI cases involving serious injury, and certain aggravated circumstances can elevate the charge to a felony. The specific grading depends on your prior record and the facts of the case.
Missouri allows expungement of some DWI convictions under certain conditions, including a waiting period and no subsequent offenses. Eligibility depends on how the case was resolved — a suspended imposition of sentence, for example, is treated differently than a conviction. An experienced DWI attorney can evaluate whether expungement is a realistic option based on the outcome of your case.
Related Practice Areas

Related Practice Areas

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