DWI & DUI Defense

Find the paperwork you were given at the roadside or at release, and look at the date you received it. If it is a notice of suspension, you have fifteen days from receipt to request an administrative hearing under § 302.530.1. If you refused testing, you are on the refusal track instead, and the Department of Revenue directs that a petition for review be filed within 30 days of the notice of revocation.

Miss the fifteen days and the suspension generally takes effect by default — without any hearing, without any judge, and regardless of how strong your criminal case is.

Second: write down everything you remember while it is fresh. Where you had been, what and when you drank, what you ate, what the officer said, what you were asked to do, whether it was raining, whether the shoulder sloped, any injury or condition affecting balance. Third: do not discuss it on a recorded jail line, on social media, or with anyone but your lawyer.

Frequently, because a number is not self-proving. The State must establish a lawful stop, a lawful arrest, and a test that was properly administered on a properly maintained instrument by a qualified operator, with the required observation period actually observed.

Each of those is a real point of attack. Was there reasonable suspicion for the stop — and does the video match the report? Were the field sobriety tests administered as standardized, on suitable ground? Was the fifteen-minute observation period before a breath test actually kept, or was the officer doing paperwork? Was the instrument’s maintenance record current? Was there a burp, reflux, residual mouth alcohol, or a rising-BAC problem where your peak came after driving?

And note the structural point: if the stop was unlawful, the result can be suppressed regardless of what it says. A .12 obtained after a bad stop is worth nothing to the State.

There is no clean answer, and anyone who gives you one is oversimplifying. Refusing means a one-year revocation under § 302.574.3 — longer than the typical suspension after a first-offense failure — and your refusal is admissible against you at the criminal trial under § 577.041.

What refusing does is deny the State a number. Without a chemical result the criminal case rests on the officer’s observations and the video, which is harder to prove and much more contestable.

The calculus differs by person. For a CDL holder or someone with priors facing felony exposure, the arithmetic is very different from a first offense. What you should know for next time is the twenty-minute rule in § 577.041 — you may ask to speak with an attorney and you get twenty minutes. Use it.

The criminal conviction is permanent unless expunged, and the expungement route for a DWI is narrow. It does not go through the general expungement statute — § 610.140 expressly excludes intoxication-related traffic offenses. It goes through § 610.130, which requires ten years from the conviction, allows one expungement per lifetime, and does not apply at all to anyone who holds or is required to hold a commercial driver’s licence.

You may also see § 577.054 cited for DWI expungement in older articles. That section no longer exists — the provision was moved into chapter 610. A page citing it is out of date.

For enhancement purposes the record is effectively forever: only the “prior offender” tier has a five-year window. Persistent, aggravated, chronic and habitual have no time limit at all.

Two questions with two answers. The administrative suspension proceeds on its own timetable and can be challenged at the § 302.530 hearing and then by trial de novo. Separately, a conviction assesses points — eight for a first DWI, twelve for a second or subsequent under § 302.302.

A limited driving privilege under § 302.309 is available from the circuit court or the director for work, school, medical care and similar necessities. It is not available to everyone — those denied under the five- and ten-year provisions of § 302.060 are excluded until their own petition mechanisms open, as is anyone whose privilege was revoked for a felony in which a motor vehicle was used within the past five years.

Expect an ignition interlock on any second or subsequent offense — mandatory under § 302.440 for at least six months from reinstatement, and required during probation under § 302.454 if you drive at all.

It is, and this misunderstanding costs people felonies. “Intoxication-related traffic offense” in § 577.001 expressly includes violations of a county or municipal ordinance, as well as federal and military offenses.

So a municipal DWI handled quietly in a small city years ago is a prior. Two of them make your next charge a class E felony as a persistent offender, with no lookback period at all.

This matters most when a first case is being resolved. An amendment to a municipal alcohol-related charge can feel like a win and still be a prior for the rest of your life. Whether it is worth taking is a real question — it is just not a free one, and you should be told which it is.

Possibly, and the answer turns on whether you were operating. Missouri removed “actual physical control” from the DWI statute in 1996, and in Cox v. Director of Revenue, 98 S.W.3d 548 (Mo. banc 2003), the Missouri Supreme Court observed that removing that phrase “narrowed its scope.”

“Operating” means “to cause to function usually by direct personal effort.” A key in the ignition with the engine running is operating — and Cox held it counts “even if that person is sleeping or unconscious.” Sleeping it off with the engine running for heat is the classic Missouri fact pattern, and it is chargeable.

Engine off, keys elsewhere, sitting in a stationary vehicle is materially different ground. It is fact-intensive and worth litigating rather than conceding — and it is one of the areas where out-of-state advice is most likely to be wrong, because many states do use physical control and Missouri no longer does.

The standardized battery is three tests — horizontal gaze nystagmus, walk-and-turn, and one-leg stand — validated only when administered exactly as standardized and scored on defined clues.

They are frequently not administered as standardized: on a sloped shoulder, in traffic, in poor light, in unsuitable footwear, on someone with a knee injury, an inner-ear condition, obesity, or age-related balance issues, none of which the roadside validation studies accounted for. That is why the video matters so much more than the officer’s conclusion.

As a practical matter, roadside tests are not something a driver is compelled to perform in the way a post-arrest chemical test is under the implied consent statute, and they exist to build probable cause rather than to clear you. Portable roadside breath devices occupy a different evidentiary position from the evidentiary instrument at the station. If you are in that situation, be polite, be brief, and ask for a lawyer.

The classification is a class B misdemeanor — up to six months and a $1,000 fine — and it is the least of it. The licence consequences, the insurance consequences, and the permanence are what actually hurt.

It also becomes a class A misdemeanor if a person under seventeen was in the vehicle. And § 577.010.2 reaches conduct independent of priors entirely: criminally negligent physical injury while intoxicated is a class E felony, and a death can reach a class B felony — class A on a repeat.

Then there is the ten-year expungement wait under § 610.130, the permanent enhancement exposure, the eight points, and for professionals, licensing board reporting obligations that frequently arrive before the case is even resolved. A first DWI is a serious matter handled early and a much more serious one handled late.

Then the licensing case is the case. The criminal threshold while operating a commercial vehicle is .04% under § 577.012, half the ordinary limit — and § 302.755 disqualifies for not less than one year on a first violation, not less than three years if you were transporting hazardous material, and for life on a second violation.

Two further points specific to CDL holders. A limited driving privilege under § 302.309 cannot authorize operation of a commercial vehicle while suspended, revoked or disqualified. And DWI expungement under § 610.130 is unavailable entirely to anyone who holds or is required to hold a CDL.

Disqualification can also follow from conduct in your personal vehicle. If your livelihood is your licence, this needs a lawyer immediately — and the fifteen-day administrative deadline is not a formality.

A DWI court is one of the treatment court divisions authorized by § 478.001 — intensive supervision, treatment, testing and frequent judicial review, with charges or penalties potentially “dismissed, reduced, or modified” on completion.

It also does specific work in the DWI statute itself. Under § 577.010.6, a prior offender may satisfy the minimum through DWI court plus 30 days of community service instead of 10 days in jail, and a persistent offender through DWI court plus 60 days of service instead of 30 days in jail. For a first offender at .15 or above, completing a DWI court programme is one of the two routes to an SIS.

Eligibility is set locally rather than by statute and varies by circuit, so whether it is available to you depends on your county. It is demanding — it is not the easy option — but where the underlying problem is real, it is frequently the outcome that serves the person best.

Yes, and the reason is the fifteen-day deadline more than anything that happens in court. That clock runs whether or not you have counsel, and once it passes the administrative suspension is generally not recoverable.

Beyond that: the disposition question. Whether you receive an SIS or an SES determines whether you carry a conviction (see how Missouri dispositions work), and it interacts with the ten-year expungement wait under § 610.130 and with permanent enhancement exposure. Those consequences are decided in the first ninety days and are effectively irreversible afterwards.

Fees here are flat and quoted before the work begins, scoped to the criminal case, the administrative case, or both. You will also be told honestly if your exposure is limited. What you should not do is nothing — the deadline does not care.