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Felony DWI Accident

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Missouri Felony DWI Accident With Injury Lawyer

A felony DWI involving an accident with injury is one of the most serious charges a person can face under Missouri law. Unlike felony DWIs based on prior offenses, prior convictions are not required when the State alleges that intoxicated driving caused physical injury.

These cases often develop quickly and aggressively. What many people do not realize is that the State’s burden of proof is significantly higher in injury-based DWI cases. Prosecutors must prove far more than intoxication.

Kissell Law Group has extensive experience defending felony DWI accident cases statewide, including cases where timing, causation, and forensic evidence determine whether the charge stands or falls.

When a DWI Becomes a Felony Due to Injury

Under Missouri law, a DWI may be charged as a felony based solely on the presence of physical injury, regardless of a driver’s prior record, under RSMo §§ 577.010, 577.001, and 577.023.

In these cases:

  • Prior offenses do not control felony classification
  • The focus shifts to how the accident occurred
  • The State must prove additional legal elements beyond a standard DWI

These cases are complex and often far more defensible than they appear at first glance.

The State Must Prove More Than a DWI

To convict a person of a felony DWI based on an injury accident, the State must prove each of the following elements beyond a reasonable doubt:

  1. Operation of a motor vehicle
  2. Intoxication at the time of operation
  3. Criminal negligence
  4. That the criminal negligence caused physical injury

Failure to prove any one of these elements means the felony charge cannot stand.

Intoxication alone is not enough.

Criminal Negligence Is a Separate Legal Requirement

Criminal negligence is not assumed simply because alcohol is involved. The State must prove:

  • A failure to perceive a substantial and unjustifiable risk
  • That the failure was a gross deviationfrom the standard of care
  • A direct causal link between the conduct and the injury

Accidents occur for many reasons unrelated to intoxication, including road conditions, vehicle defects, other drivers, medical events, or unknown variables.

Timing Is Often the Strongest Defense

In accident-related DWI cases, timing is frequently the weakest link in the States case.

The prosecution must establish:

  • When the accident occurred
  • When the defendant last operated the vehicle
  • When intoxication existed relative to operation

These cases often involve:

  • No eyewitnesses
  • Delayed police arrival
  • Emergency medical treatment before testing
  • Blood draws conducted hours later

Probable cause and timing must exist before an arrest, not reconstructed afterward. If the State cannot reliably establish the time of operation, it cannot meet its burden under RSMo § 577.010.

If no one saw the accident and the timing is unclear, the defense issues are often substantial.

Forensic Accident Reconstruction Experience Matters

Felony DWI accident cases often turn on how the crash itself is interpreted, not simply whether a report exists.

Attorney Thomas Kissell has personally deposed Missouri State Highway Patrol forensic accident reconstructionists, including senior investigators responsible for high-level crash analysis. Through that work, he developed his own analytical charts and frameworks using electronic data, physics, roadway evidence, and vehicle damage, rather than relying on assumptions.

We do not accept conclusions at face value. We test them.

What We Analyze Beyond the Crash Report

  • Electronic Data Recorder (EDR) information
  • Speed, braking, throttle, and steering input
  • Timing of events relative to airbag deployment
  • Roadway evidence such as yaw marks, gouge marks, and debris fields
  • Damage patterns and crush analysis from photographs
  • Consistency between physical evidence and reported narratives

EDRs are often casually referred to as “black boxes,” but that term comes from aviation. In vehicle cases, EDR data is limited, specific, and context-dependent. Without proper interpretation, it can be misleading.

 

Crash Report vs Physical Evidence Why Assumptions Fail in Injury DWI Cases

Crash Report Conclusions

Physical Evidence Analysis

Narrative summary based on interviews

Objective data from vehicle systems

Estimated speeds

Actual speed and braking data from EDR

Officer assumptions about fault

Physics-based reconstruction

General point of impact

Measured crush damage and energy transfer

Time inferred after the fact

Event sequencing from data and scene evidence

Alcohol assumed to explain behavior

Alternative causes evaluated and tested

Conclusions accepted at face value

Conclusions challenged and verified

 

In serious injury cases, the truth is often found in the data, not the assumptions.

 

Why Forensic Analysis Changes Outcomes

In felony injury DWI cases, the State must prove criminal negligence and causation. Forensic reconstruction often reveals:

  • Timing inconsistencies between operation and testing
  • Alternative causes of the collision
  • Errors in speed or fault assumptions
  • Mechanical or roadway factors unrelated to intoxication
  • Reconstruction conclusions unsupported by physical evidence

These issues frequently create reasonable doubt when properly identified and explained.

Criminal and License Exposure in Injury Felony DWI Cases

A felony DWI involving injury carries:

  • Prison exposurein the Missouri Department of Corrections
  • Long-term or permanent license revocation under RSMo §§ 060 and 302.525
  • Mandatory ignition interlock requirements under RSMo § 302.309

The stakes are high, but outcomes depend on proof, not labels.

 

Our Approach to Felony DWI Accident Defense

Every felony DWI accident case begins with a free consultation. Our team gathers detailed information immediately so the matter can be evaluated accurately. These cases are reviewed internally, including attorney review, before representation is offered.

Clients can expect:

  • Clear explanation of felony exposure and prison risk
  • Honest assessment of evidentiary strengths and weaknesses
  • A defense strategy focused on timing, causation, and forensic proof
  • Immediate action once representation begins

We are selective in the felony cases we accept and take seriously the responsibility of defending clients facing life-altering charges.

Speak With a Missouri Felony DWI Accident With Injury Lawyer

If you are being investigated or charged with a felony DWI involving an accident with injury in Missouri, time matters. Evidence fades, assumptions harden, and timelines get reconstructed quickly.

If no one witnessed the accident, if the timing is uncertain, or if intoxication at the time of operation is being assumed rather than proven, you need experienced defense immediately.

Initial consultations are always free

Contact Kissell Law Group today to discuss your situation and understand what options may be available.

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St. Louis

314-669-4394

Kansas City

816-944-3943

Office Address

7513A Forsyth Blvd Clayton, MO 63105