Spoliation in Truck Accident Cases: What Happens When ELD, GPS, or Truck Data Disappears?

When a commercial truck crashes, the most powerful evidence often lives inside the truck itself.

Electronic logging devices, GPS systems, and onboard black boxes record speed, location, braking, and hours behind the wheel. But what happens if that data disappears before you can use it? Courts take the destruction of evidence seriously, and trucking companies that delete or lose critical records can face severe legal consequences.

At Doubek, Pyfer & Storrar, PLLP, our Montana truck accident attorneys hold trucking companies accountable when they destroy or fail to preserve the evidence you need. Call us at 406-442-7830 or fill out our confidential contact form to schedule a free consultation.

What Data Does a Commercial Truck Actually Capture?

Modern commercial trucks carry several layers of electronic recordkeeping. Understanding what exists is the first step toward preserving it.

• Electronic Logging Devices (ELDs): Required by federal law for most commercial carriers, ELDs record driving time, hours of service, engine hours, vehicle miles, and GPS location at regular intervals.
• Event Data Recorders (EDRs) and Engine Control Modules (ECMs): These black box systems capture pre-crash data, including speed, throttle position, hard braking events, and steering inputs in the seconds before impact.
• GPS and Fleet Telematics: Separate from ELD data, GPS systems may track real-time location, route history, idling, and speed over time.

Together, these systems can tell a detailed story about what the driver was doing, how long they had been on the road, and exactly what the truck was doing at the moment of the crash.

How Long Are Trucking Companies Required to Keep This Data?

Under 49 CFR Section 395.8, motor carriers must retain ELD records of duty status and all supporting documents for six months. That might sound like plenty of time, but in practice, it is an incredibly short window. If a Montana family is still recovering from crash injuries and has not yet retained an attorney, that six-month clock may already be running out.

GPS and telematics data may overwrite even faster, depending on the carrier’s system settings. Some systems retain only 30 days of location history before older data is purged automatically. Maintenance records expire after just one year under 49 CFR Section 396.3. The window between a crash and data loss is often shorter than injured people realize.

What Is Spoliation, and When Does It Apply?

Spoliation occurs when a party destroys, alters, or fails to preserve evidence after they knew or should have known that evidence was relevant to a claim or lawsuit. In truck accident cases, this duty to preserve arises at the moment the trucking company is put on notice of the potential claim. That notice can come from a crash report, a call from the driver, or a formal written demand from a truck accident attorney.

A truck accident law firm handling serious injury cases will often send a preservation demand, sometimes called a spoliation letter, within 24 to 48 hours of being retained. That letter formally notifies the carrier that all electronic data, maintenance records, communication logs, driver qualification files, and onboard records must be preserved immediately. Once that letter is received, any subsequent destruction of evidence is not just a policy violation. It is spoliation.

What Happens in Court When Data Is Destroyed or Claimed to Be Lost?

Courts treat spoliation seriously. When a trucking company destroys or fails to preserve evidence after being put on notice, judges can impose consequences that shift the balance of a case dramatically.

The most significant consequence is an adverse inference instruction. When a court gives this instruction, the jury is told it may assume the destroyed evidence would have been harmful to the trucking company’s case. In other words, a jury can presume the ELD data showed the driver was fatigued, speeding, or in violation of federal hours-of-service rules. That presumption can turn a contested liability case into a clear finding of fault.

Courts can also impose sanctions, strike the defendant’s defenses, or in the most egregious cases, enter a default judgment against the trucking company. Digital forensics experts have recovered “deleted” data in cases where carriers claimed it was gone, proving intentional destruction. Courts in Montana and across the country take these findings seriously.

Why Timing Matters So Much After a Montana Truck Crash

Montana highways carry significant commercial truck traffic. Crashes on I-15, US-12, and US-2 can involve carriers from across the country, many of whom have legal teams and insurance adjusters on the scene within hours. While you are in the hospital or recovering at home in Helena, the trucking company is already beginning its internal investigation. That is often when, as digital forensics professionals have documented, “accidental” deletions occur.

Hiring a truck accident lawyer in Montana immediately after a serious crash is one of the most important steps you can take. The attorneys at Doubek, Pyfer & Storrar, PLLP hold CDLs and are trained in commercial driving regulations, which means they know exactly what data exists, where to find it, and how to demand its preservation before it is gone.

Once your truck accident attorney sends a preservation letter, the trucking company has a legal obligation to hold all relevant data. Violating that obligation carries real consequences in court.

Contact Our Montana Truck Accident Law Firm Today

The truck accident attorneys at Doubek, Pyfer & Storrar, PLLP have spent decades fighting for injured Montanans and their families. If you or someone you love was hurt in a commercial truck crash, do not wait. Call us at 406-442-7830 or fill out our confidential contact form to schedule your free consultation.