Wyoming Criminal Defense
When Does a DUI Become a Felony in Wyoming?
Prior convictions, serious injuries, and other circumstances can change the charge and the penalties you face.
Could Your DUI Charge Be a Felony?
Speak with Cowboy Country Law about your charging documents, prior convictions, license notices, and the next steps in your case.
A DUI arrest can leave you trying to answer several urgent questions at once. Could you go to prison? Will a past conviction count against you? Can you still drive to work? Before those questions can be answered, you need to know which offense prosecutors are alleging and what makes the case a misdemeanor or a felony.
In Wyoming, a fourth or subsequent qualifying DUI conviction within ten years is a felony. Impaired driving that causes serious bodily injury can also carry felony punishment, even without a prior DUI conviction. A death may lead to a separate charge of aggravated homicide by vehicle. Certain repeat child-passenger violations carry felony punishment as well.
The details matter. An arrest, a conviction, and a prior conviction that legally qualifies for an enhanced penalty are different things. The charging documents, driving history, and evidence from the incident should be reviewed together before assuming which penalties apply.
Wyoming DUI Charges: A Quick Comparison
Wyoming’s main impaired-driving statute is W.S. 31-5-233. People may use DUI, DWUI, or DWI when discussing impaired driving. The statutory charge and subsection listed in your paperwork determine the legal issues in your case. Source: Wyoming Statutes, § 31-5-233.
| Alleged circumstances | Classification or potential charge | Possible incarceration upon conviction |
|---|---|---|
| Standard first DUI, without an applicable enhanced-penalty provision | Misdemeanor | Up to six months |
| Second qualifying DUI within ten years | Misdemeanor | Seven days to six months |
| Third qualifying DUI within ten years | Misdemeanor | Thirty days to six months, subject to statutory treatment provisions |
| Fourth or subsequent qualifying DUI within ten years | Felony | Up to seven years |
| DUI causing serious bodily injury | Felony | Up to ten years; up to twenty years with a qualifying prior serious-injury conviction |
| DUI proximately causing another person’s death | Aggravated homicide by vehicle, a separate felony offense | Up to twenty years |
| First child-passenger violation by a driver age eighteen or older with a passenger under sixteen | Misdemeanor under the enhanced child-passenger provision | Up to one year |
| Child-passenger violation with a qualifying prior conviction under that provision or a substantially conforming law | Felony | Up to five years |
These are statutory incarceration ranges, not predictions about an individual case. Fines, assessments, treatment requirements, probation, and driving restrictions may also apply. When several provisions could apply to the same incident, an attorney should review the actual charges rather than simply adding the table’s penalties together.
How Prior Convictions Can Turn a DUI Into a Felony
Under W.S. 31-5-233(e), a fourth or subsequent qualifying conviction within ten years carries felony punishment. That makes the prior-conviction review a central part of the defense.
A person may remember an old case as a ticket, a plea agreement, or a matter that was “taken care of.” Those descriptions do not establish how it will be treated in the current prosecution. The court records and the legal disposition matter.
An attorney can examine the dates, the offenses involved, and whether the records support the enhancement being alleged. A count based only on someone’s memory or a brief summary of a driving record leaves important questions unanswered.
Out-of-State Convictions May Count
Moving to Wyoming does not necessarily leave an earlier impaired-driving conviction behind. W.S. 31-5-233(a)(v) includes specified impaired-driving laws from other states and other jurisdictions, including tribal law.
Tell your attorney about previous cases even if they happened elsewhere or used a different abbreviation. If you have the judgment, sentencing order, or other disposition paperwork, bring it. The legal review concerns whether the prior case qualifies under Wyoming’s rules, rather than whether it was called DUI or DWI.
Can a First DUI Be a Felony in Wyoming?
A standard first DUI is generally a misdemeanor. A first impaired-driving incident involving serious bodily injury or death can be much more serious.
W.S. 31-5-233(h) addresses serious bodily injury resulting from a DUI violation. It allows imprisonment of up to ten years when the person does not have the qualifying prior serious-injury conviction described in that subsection. A qualifying prior conviction can increase the maximum to twenty years.
The statute uses a defined legal category of injury. W.S. 6-1-104(a)(x) includes specified serious harms such as severe disfigurement, protracted impairment of bodily function, and significant fractures. The medical evidence and statutory definition need to be considered together. Source: Wyoming Statutes, § 6-1-104(a)(x).
For someone facing this allegation, the review extends beyond the alcohol or drug evidence. An attorney must also examine the nature of the injury and the claimed connection between the DUI violation and that injury. Medical records, witness accounts, photographs, and crash evidence can become important to different parts of that analysis.
A Fatal Crash Can Lead to a Separate Homicide Charge
When impaired driving causes a death, the relevant charge may be aggravated homicide by vehicle under W.S. 6-2-106(b). The DUI-related provision requires that the DUI violation be the proximate cause of the death. A conviction carries a maximum of twenty years in prison.
“Proximate cause” concerns the legal connection between the violation and the death. Describing a crash as alcohol-related does not, by itself, explain how every element of the charged offense will be proved.
In this setting, the defense may need to examine the collision sequence, vehicle movements, roadway evidence, witness observations, and the basis for the impairment allegation. The necessary investigation depends on the facts. A lawyer should identify the evidence that matters to the specific charge rather than treating every fatal crash as the same case.
What Changes When a Child Is in the Vehicle?
Wyoming has a specific child-passenger provision in W.S. 31-5-233(m). It applies to a driver age eighteen or older who commits a DUI violation while a passenger under sixteen is in the vehicle.
A first conviction under that subsection carries up to one year in jail. A person previously convicted and sentenced under the subsection, or a substantially conforming law, faces up to five years.
That distinction deserves careful attention. The relevant prior conviction for this particular enhancement is not simply any earlier DUI. The prosecution’s records must support the qualifying history described in the statute. Other felony provisions may also apply when the same incident involves additional circumstances, such as serious bodily injury or a fourth qualifying DUI conviction.
Your License Needs Attention Before the Criminal Case Ends
The criminal charge and an administrative license action involve separate procedures. Your first court date should not be treated as the only date that matters.
WYDOT’s hearing and record-review information states that written requests must be received or postmarked within twenty days of the date the Department gave notice of its intended action. Have an attorney review the actual notice promptly to identify the applicable procedure, deadline, and submission requirements. Do not assume the deadline starts on your court date.
Keep the notice, the envelope it arrived in, and any temporary driving document with your arrest and court paperwork. Ask specifically whether you currently have driving privileges and what happens on the dates listed in those documents. Needing to drive for work or childcare does not itself establish permission to drive.
Ignition interlock requirements are another issue to review. W.S. 31-5-233(f) provides different requirements based on the applicable circumstances, including conviction history. A fourth or subsequent conviction carries a lifetime interlock requirement, with an opportunity to apply for removal after five years and at five-year intervals thereafter. Removal requires a court decision under the statutory conditions.
Restricted driving options depend on the legal basis for the license action and the person’s eligibility. An attorney can evaluate those options alongside the criminal case rather than waiting for sentencing to address transportation concerns.
What an Attorney Should Examine in a Felony DUI Case
A defense should respond to the evidence and the alleged felony basis. Several questions can guide that review.
The Stop and the Driving Allegation
The reason for the traffic stop deserves attention, as does the evidence identifying who was driving or in actual physical control of the vehicle. Reports and recordings should be considered together. A summary in a police report may leave out context that appears elsewhere in the record.
Chemical Testing and Timing
Breath or blood evidence should be reviewed with the collection records, testing procedures, and timeline. Wyoming’s statute contains specific provisions concerning alcohol measurements, including a provision for certain measurements within two hours after driving or actual physical control. A defense assessment must account for the statutory basis being used, rather than assuming that every test raises the same timing issue.
The Alleged Felony Basis
For a repeat-offense charge, the prior judgments may be central. For an injury allegation, medical and causation evidence may become central. For a child-passenger enhancement, the ages involved and any qualifying prior conviction require attention.
The useful question is what evidence supports each required element of the actual charge. That gives the defense a clearer focus than a general list of possible DUI defenses.
Any Proposed Reduction or Resolution
Wyoming places statutory conditions on reducing or dismissing DUI charges. W.S. 31-5-233(j) requires the prosecutor to make the specified motion or file a statement, supported by facts, that there is insufficient evidence to sustain the charge.
A promised reduction should never replace a careful review of the evidence and the governing law. Before considering a proposed resolution, ask what you would be admitting, which conditions would follow, and how it would affect your driving privileges and record.
What to Gather Before Speaking With a Lawyer
Start with the documents you already have. You do not need to solve the case before seeking help.
- Bring the citation or charging documents, release conditions, court notices, and license notices.
- Gather available judgments or sentencing records from earlier impaired-driving cases.
- Preserve relevant photographs, messages, receipts, and potential witness contact information.
- Write a private timeline for your attorney while your memory is fresh, identifying what you remember clearly and what you are uncertain about.
Keep original records intact. Avoid posting an account of the incident online or contacting witnesses to coordinate descriptions of what happened. Give your lawyer the information needed to assess the case, including facts you are worried may be unfavorable.
Frequently Asked Questions
Is a first DUI a felony in Wyoming?
A standard first DUI is generally a misdemeanor. Serious bodily injury resulting from the DUI can carry felony punishment, and a DUI-related death can lead to aggravated homicide by vehicle. The exact charge and facts determine which provisions apply.
Is a third DUI a felony in Wyoming?
A third qualifying DUI within ten years is generally a misdemeanor under the repeat-offense provision, although it carries increased punishment. A separate felony basis, such as serious bodily injury, may change the analysis. The ordinary repeat-offense felony threshold is a fourth qualifying conviction within ten years.
Can a DUI be a felony if nobody was hurt?
Yes. A fourth or subsequent qualifying DUI conviction within ten years can be a felony without an injury. A qualifying repeat child-passenger violation can also carry felony punishment. Injury is one possible basis for a felony, rather than a requirement in every felony DUI case.
Does an out-of-state DUI conviction count in Wyoming?
It may. Wyoming’s statute recognizes specified impaired-driving laws from other jurisdictions. An attorney should review the earlier judgment, applicable law, dates, and disposition to determine whether the conviction supports the enhancement alleged in your case.
Does a high BAC automatically make a Wyoming DUI a felony?
A high BAC alone is not the felony trigger under the provisions discussed here. It can affect other consequences, including ignition interlock requirements. Your prior qualifying convictions, injuries, and other applicable statutory circumstances still need separate review.
Does a crash automatically make a DUI a felony?
The fact that a crash occurred does not automatically establish a felony DUI. Serious bodily injury or death can support more serious charges when the required elements are met. Property damage, the medical evidence, and the claimed causal connection should be evaluated separately rather than grouped together as “a crash.”
Is a DUI with a child passenger always a felony?
Wyoming distinguishes a first conviction under its child-passenger provision from a violation involving a qualifying prior conviction under that provision or a substantially conforming law. The first carries up to one year in jail; the qualifying repeat violation carries up to five years. Other felony grounds may also apply to the incident.
Is my license hearing the same as my criminal court appearance?
They are separate proceedings. A court date does not replace the need to address a license notice. Give your attorney both sets of documents promptly so the applicable deadlines and available procedures can be assessed together.
Can a felony DUI charge be reduced or dismissed?
That depends on the evidence and applicable law. Wyoming’s DUI statute imposes specific conditions on reductions and dismissals, including a supported prosecutorial statement of insufficient evidence. An attorney can examine whether the evidence supports the DUI allegation and the claimed felony enhancement.
What should I bring to a DUI attorney?
Bring your charging documents, release conditions, court dates, license notices, and any records from earlier DUI cases. Include relevant photographs, witness contact information, and your recollection of the incident. Seek help promptly even if some records are missing; your attorney can identify what else needs to be obtained.
Talk With Cowboy Country Law About Your Wyoming DUI Charge
Whether a DUI is a misdemeanor or felony can turn on a prior judgment, the injury evidence, or the specific subsection prosecutors are using. Those details also shape the defense and the questions you need answered about your license.
Contact Cowboy Country Law to discuss your Wyoming DUI charge. Have your charging documents and any license notices ready so the team can discuss the alleged felony basis, the deadlines that need attention, and the evidence an attorney should review. Get a clearer picture of your case before making decisions about a plea or your next court appearance.
Understand the Charge. Prepare Your Next Move.
Get answers about the alleged felony basis, your driving privileges, and the evidence that needs review.

