After a semi truck crash in St. Louis, the evidence that proves fault usually sits with the trucking company. That includes black box data, electronic logging records, dashcam video and the carrier’s safety files, and some of it can be overwritten in routine operations. A prompt written preservation demand is how injured people keep that record intact.
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This page explains how evidence is found, preserved and used in Missouri truck crash claims. It covers electronic data, carrier records, reconstruction and the Missouri deadlines that apply. It does not cover Illinois law, criminal traffic charges against the driver, or workers’ compensation claims by truck drivers. It isn’t a substitute for advice about your specific crash.
In Missouri, a truck crash claim can decide how a family pays for surgery, months of lost work, and sometimes care that lasts a lifetime. The evidence that answers who caused the crash is mostly in the hands of the trucking company, and waiting gives that evidence time to disappear. Missouri’s filing deadlines are long by national standards, but evidence doesn’t follow the same clock.
These crashes are a serious national problem. According to FMCSA large truck crash facts, approximately 13% of all motor vehicle fatalities involved large trucks (FMCSA, 2022). That same year, 5,936 large trucks and buses were involved in fatal crashes (FMCSA, 2022).
Missouri generally allows 5 years to file an injury lawsuit and 3 years for wrongful death. But those deadlines are a ceiling, not a plan. If a government-owned vehicle was involved, or the injured person is a child, different timing rules may apply. Confirm your deadline early with a lawyer rather than assuming the general rule fits.
For an overview of how these cases work from start to finish, see our St. Louis truck accident lawyer page.
If your crash happened recently, the most useful thing you can do this week is get preservation letters out. Call 314-208-2808 and we’ll talk through which records need protecting first.
We work a truck case in a set order. First we preserve the electronic and paper record, then we identify every business that may share responsibility, test that record against federal safety rules and Missouri fault law, and only then weigh negotiation against litigation. This is a general outline. Which parties can be held responsible always depends on the facts, contracts and evidence in your case.
Christopher R. Dixon built this approach on two parts of his background. He gained courtroom experience working with the St. Louis City Circuit Attorney’s Office during law school, which taught him how evidence holds up when it’s challenged. His finance degree from the University of Missouri–Columbia shapes how he measures long-term economic losses.
Commercial trucks generate electronic data that can be overwritten in routine operations. We send prompt written preservation demands to the carrier and anyone else holding records.
A preservation letter is a formal written notice telling a company to keep specific evidence because a legal claim is expected. It puts the company on record as knowing what to save.
If the data is secured, reconstruction can rest on objective speed, braking and duty-time records. If it’s missing, the strategy shifts toward witnesses, scene evidence, and challenges to the loss of the records.
We determine who employed the driver and who operated under the carrier’s federal authority. We also find out who owned or leased the tractor and trailer, who loaded the cargo, and who maintained the vehicle. Questions of Trucking Company Liability often turn on lease agreements and dispatch records that never appear in a police report.
Claims against freight brokers are possible in some circumstances. They remain contested and depend heavily on the facts.
Federal motor carrier rules govern hours of service, driver qualification, drug and alcohol testing, and vehicle inspection and maintenance. Comparing the carrier’s own files against those rules can show whether the crash grew out of company practices rather than one driver’s mistake.
One Missouri wrinkle matters here. When a carrier admits the driver was acting for it, separate negligent hiring or entrustment claims may be treated as duplicative. That makes early pleading choices important.
Reconstruction looks at lighting, speed, following distance, load conditions and roadway factors. A strong reconstruction narrows the defense’s ability to shift blame onto you. Where some fault on your part is likely, the goal is to keep that share as small as the evidence allows.
Carriers must maintain liability coverage, but other policies may also apply. These include excess or umbrella policies, coverage held by other responsible businesses, and your own uninsured or underinsured motorist coverage.
Two of our attorneys previously worked on the defense side. Greg Motil combines defense-side experience with plaintiff representation to understand how insurance carriers evaluate claims, and Michael A. Langella brings insight from his background defending insurance companies. That history informs how we anticipate coverage positions. Our St. Louis insurance claims lawyer page covers claim handling in more depth.
Serious truck injuries often involve future care, lost earning capacity and permanent limitations. Christopher Dixon’s finance background supports careful economic analysis of those losses, especially in catastrophic injury cases. We compare a well-documented damages picture against the coverage available. That comparison guides whether to negotiate, file suit, or prepare for trial.
Past recoveries and recognitions describe our attorneys’ backgrounds. They don’t predict the result of any future case.
Want to know which of these steps applies first in your situation? Call 314-208-2808 to discuss your case with us.
In a Missouri truck crash claim, fault is usually proven with a combination of electronic data, company records and physical scene evidence, and most of it is controlled by the motor carrier rather than the injured person. That imbalance is why preserving trucking evidence early matters more here than in a typical car crash.
The table below shows the main categories, who typically holds them, and why each one can be at risk.
| Evidence | Who Usually Holds It | What It Can Show | Preservation Risk |
|---|---|---|---|
| Electronic logging device (ELD) records | Motor carrier | Driving and on-duty time compared with federal hours-of-service limits | Can be lost or overwritten in routine operations |
| Engine and event data (black box) | Motor carrier; stored in the truck | Speed, braking and throttle activity around the moment of impact | Can be lost if the truck is repaired, sold or returned to service |
| Dashcam and telematics records | Motor carrier or its technology vendor | Video of the driver or roadway, GPS location and route history | Footage may be recorded over during normal use |
| Driver qualification file | Motor carrier | Licensing, driving history, training and testing records | Held by the company and usually obtained through formal requests |
| Inspection and maintenance records | Motor carrier or maintenance provider | Brake, tire and defect history for the tractor and trailer | Scattered across shops and contractors, which makes records easy to miss |
| Bills of lading and dispatch records | Shipper, carrier or broker | Cargo weight, who loaded it, and delivery schedule pressure | Spread across several businesses with no duty to coordinate |
| Police crash report and scene photos | Investigating agency and witnesses | Vehicle positions, road conditions and initial statements | Scene conditions change quickly once the roadway is cleared |
Electronic data tells you what the truck did. Paper records often explain why. A dispatch message pushing a tight delivery window, or a maintenance log showing a brake complaint that was never fixed, can connect a single bad moment to a company decision. Records about repairs also come up in a Truck Maintenance Failure Accident claim, where the maintenance provider may share responsibility.
You hold some evidence too. Your photos, medical records, damaged vehicle and the names of witnesses all matter. Don’t repair or scrap your vehicle until it has been inspected or documented, because its crush damage can help a reconstruction expert estimate impact speed and direction.
Black box data in a truck accident case refers to information recorded by the truck’s onboard electronics, which can capture speed, braking and other driving inputs in the moments around a crash. In Missouri claims, this data often becomes the most objective account of what the truck was doing.
An event data recorder is an electronic device, often part of the engine control system, that stores vehicle data when a sudden change like hard braking or impact occurs. Truckers and lawyers usually call it the “black box.”
Black box data isn’t something you can print from a dashboard. It usually requires specialized equipment and trained technicians. A careless download, or a truck that’s driven and repaired before anyone downloads it, can compromise the record. That’s why a preservation demand should ask the carrier to keep the truck and its electronic components unchanged until a proper download is arranged.
Most people miss this part. The trucking company’s own investigators often reach the truck long before the injured person has a lawyer.
ELD logs can support a truck accident lawsuit by showing exactly how long a driver was driving and on duty, which can then be compared against federal hours-of-service limits. FMCSA rules limit truck drivers to 11 hours of driving after 10 consecutive hours off duty (FMCSA, 2024). Logs that show a driver over that limit can point toward Truck Driver Fatigue as a cause of the crash.
An electronic logging device, or ELD, is equipment connected to the truck’s engine that automatically records driving time. It replaced most paper logbooks for drivers who are required to track their hours.
Logs are only as reliable as the inputs behind them. We compare ELD records against other sources that show where the truck actually was:
When those sources don’t line up with the logs, the gap itself becomes evidence. The federal rules behind these limits are set by the FMCSA, and the topic of FMCSA Hours-of-Service Rules Explained for Truck Crash Victims goes deeper into how the limits work.
A tired driver is a driver problem. A schedule that made fatigue predictable is a company problem. If logs show a pattern of violations, that can support direct claims against the carrier rather than only the driver. But the opposite is also true. If the carrier admits the driver was working for it, Missouri law may limit some separate claims, so the evidence gets used to prove the driver’s conduct and your damages instead.
A truck accident reconstruction expert is most useful when fault is disputed, when the crash involved several vehicles, or when the defense argues that the injured driver caused or contributed to the collision. Under Missouri’s pure comparative fault rule, every percentage point of fault assigned to you reduces your recovery, so disputed facts carry real financial weight.
Picture a tractor-trailer rear-ending a car that slowed for traffic near a highway interchange. The trucking company says the car cut in front of the truck and braked hard. A reconstruction that combines the truck’s speed data with the car’s damage pattern can test that story. If the numbers show the truck was following too closely to stop in time, the “cut-off” defense loses much of its force.
Not every case needs a full reconstruction. Clear rear-end crashes with good video may not. The decision depends on how strongly fault is contested and how much is at stake.
If a trucking company loses or destroys evidence after it knew a claim was likely, the injured person may be able to ask the court for remedies, depending on the circumstances and what the judge finds about why the evidence was lost. A written preservation demand makes that argument much stronger, because it shows the company was told what to keep.
Spoliation is the legal term for destroying, altering or failing to preserve evidence that is relevant to a lawsuit. Courts look at whether the party knew the evidence mattered and why it disappeared.
Without a preservation demand, a carrier can argue that deleted data was simply lost through normal operations. With one, that argument gets harder. The letter turns an ordinary records process into a known legal obligation.
Sometimes evidence is lost before anyone asks for it. That doesn’t end a case. We shift toward the evidence that remains, like eyewitnesses, scene photos, vehicle damage, the police report and the carrier’s other records. We also examine how and when the records were lost, since that history can matter on its own.
Missouri follows pure comparative fault under Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983): an injured person’s damages are reduced by their percentage of fault, but they can still recover even if they were more than 50% at fault. This rule is why evidence about how fault is divided matters so much in Missouri truck cases.
Comparative fault means a jury assigns each party a percentage of responsibility, and the injured person’s award is reduced by their share. Under Missouri’s pure version, there is no cutoff point where recovery stops.
Assume a jury values a claim at $100,000 and finds the injured driver 20% at fault. Under pure comparative fault, the recovery would be reduced to $80,000. If the jury found that driver 60% at fault, recovery would drop to $40,000 rather than disappearing. These figures are illustrative only and say nothing about what any case is worth.
But there’s a catch. Insurers know this rule too, so they often work to push even small percentages onto the injured person. Objective data is the best answer to that.
For claims against a truck or parts manufacturer over a defect, comparative fault in products liability is addressed separately in RSMo § 537.765. Our St. Louis product liability lawyer page explains defect claims.
| Claim Type | General Time Limit | Authority | What Can Change It |
|---|---|---|---|
| Personal injury | 5 years | Mo. Rev. Stat. § 516.120 | Special rules may apply to minors or claims involving government entities |
| Property damage to your vehicle | 5 years | Mo. Rev. Stat. § 516.120 | Insurance policy notice requirements may apply much sooner |
| Wrongful death | 3 years | Mo. Rev. Stat. § 537.100 | Only statutory beneficiary classes may file, in priority order |
Missouri sets a priority order under RSMo § 537.080. The first class is the spouse, children (or descendants of deceased children), and parents. Siblings or their descendants may file only if no first-class survivor exists, and a court-appointed plaintiff ad litem may file only if neither group survives. Families facing this situation can find more on our St. Louis wrongful death lawyer page.
A Missouri truck crash lawsuit from the St. Louis area may be filed in a state circuit court or, in some cases, moved to federal court, depending on venue rules, where the crash happened, and where the parties are based. The right court is a legal question for each case, not a fixed rule for a county.
If you already have a case, your court paperwork identifies the court and division assigned. You can look up Missouri state case information through Missouri Courts.
St. Louis sits where I-70, I-44, I-55 and I-64 meet, with I-270 circling the county and the Poplar Street Bridge carrying traffic into Illinois. Crashes on interstates are often investigated by the Missouri State Highway Patrol. City street crashes may be handled by the St. Louis Metropolitan Police Department. The investigating agency’s report is usually the first record we request.
Seriously injured people in this region are often treated at hospitals like Barnes-Jewish Hospital, Saint Louis University Hospital or Mercy Hospital St. Louis. Those medical records become the backbone of the damages case, especially for traumatic brain injuries.
Some St. Louis truck crashes happen on the Illinois side of the river. Illinois has its own fault rules and deadlines. Christopher Dixon is admitted to both the Missouri Bar and the Illinois Bar, so we can review which state’s law may apply. This page addresses Missouri law only.
The Dixon Injury Firm handles truck accident claims with no fee unless we win, which means you don’t pay an attorney fee unless we recover money for you. Case expenses, like expert and records costs, are a separate item. Ask us to walk you through how expenses are handled before you sign anything.
In one documented Missouri case, our client had just gotten engaged when a driver from a local construction company, hauling commercial digging equipment, crashed his company truck and trailer into the rear of her vehicle. That claim resolved with a $150,000 settlement. Every case is different, and this result doesn’t predict the outcome of yours.
Don’t worry if you’re missing some of these. Part of our job is tracking down the records you can’t reach.
The information on this page is for general informational purposes and does not constitute legal advice. Every case is unique, and past results do not guarantee future outcomes. Contact a qualified attorney to discuss your specific situation.
The trucking company started building its version of events the day of the crash. Missouri gives you 5 years to file an injury claim and 3 years for wrongful death, but the electronic records that show what really happened can be gone long before then. Call The Dixon Injury Firm at 314-208-2808, any time, to talk with a St. Louis truck accident lawyer about protecting your evidence. We represent injured people across St. Louis, Clayton, Florissant and St. Charles County.
The Dixon Injury Firm works on a no-fee-unless-we-win basis, so you pay no attorney fee unless we recover money for you. Case expenses, such as expert fees and records costs, are a separate category. We’ll explain how those expenses are handled and answer your questions about the fee agreement before you decide anything.
In Missouri, most personal injury claims must be filed within 5 years under Mo. Rev. Stat. § 516.120. Wrongful death claims generally must be filed within 3 years under Mo. Rev. Stat. § 537.100. Different rules may apply when a child is injured or a government entity is involved, so confirm your specific deadline early. Evidence like electronic truck data can be lost much sooner than either deadline.
You shouldn’t assume the data will still be there later. Commercial trucks generate electronic records that can be overwritten or lost in routine operations, and a truck that’s repaired or returned to service may lose its crash data. A written preservation demand sent promptly to the carrier is the practical way to ask the company to keep it.
No honest lawyer can give you a number at the start. Value depends on your medical treatment, future care needs, lost income and earning capacity, how fault is divided, and how much insurance coverage is available. Under Missouri’s pure comparative fault rule, any share of fault assigned to you reduces your recovery. We build that picture from records before discussing value.
You aren’t required to accept any offer, and once you sign a release, you usually can’t reopen the claim. Before deciding, you’ll want a clear picture of your medical prognosis, future costs and the coverage available. An early offer may come before anyone knows the full extent of your injuries. Have a lawyer review any offer or release before you sign.
Missouri follows pure comparative fault under Gustafson v. Benda (1983). You can still recover damages even if you share fault, and even if your share is more than half. Your recovery is reduced by your percentage of fault. That’s why objective evidence like black box data and reconstruction matters so much.
Timing depends on several factors. These include how long your medical treatment lasts, how many companies are involved, whether fault is disputed, how quickly records are produced, and whether a lawsuit becomes necessary. Settling before you know the long-term effects of your injuries can leave money on the table, so speed isn’t always the goal.
You aren’t legally required to have one. Truck cases differ from car crashes because key evidence is controlled by the carrier, several businesses may share responsibility, and federal safety rules apply. A lawyer can send preservation demands, request company records, identify every insurance policy, and work with experts. You can talk with us to decide whether representation makes sense for you.
Federally regulated general freight carriers must carry at least $750,000 in liability coverage, and hazmat carriers must carry $1 million to $5 million (FMCSA, 2024). Some trucks may fall under different rules. Other policies may also apply, including excess coverage, policies held by other responsible businesses, and your own uninsured or underinsured motorist coverage.
Most injury claims resolve through settlement rather than trial. Even so, preparing a case as though it could go before a jury tends to put the evidence in order and shows the other side the claim is ready. Whether to settle or try a case is ultimately your decision, made after you understand the evidence and the coverage.
Many people use their own health insurance, and some auto policies include medical payments coverage. If your health insurer, Medicare or Medicaid pays for crash-related treatment, it may have a right to reimbursement from any recovery. Those claims need to be addressed before a settlement is finalized. Keep every bill and explanation of benefits you receive.
Possibly, but you usually can’t get it on your own. Dashcam and telematics footage is typically held by the carrier or its technology vendor and may be recorded over during normal use. A preservation demand asks the company to keep it, and formal requests in a claim or lawsuit are how it’s usually obtained.
Many personal injury law factories get as many clients in the door as possible, hoping one will be the jackpot. Not us. At The Dixon Injury Firm, we’re highly selective about our cases because we devote considerable time and attention to each client.
