A collision with an 80,000-pound commercial truck is rarely a simple matter of two drivers' accounts. Federal regulations require trucking companies to keep detailed records, and those records often reveal the true cause of a crash: a fatigued driver, a skipped inspection, an overloaded trailer, or faulty brakes. The challenge is that this evidence is controlled by the trucking company, and it can disappear fast.
Why Truck Cases Turn on Evidence
On Arizona's freight corridors, I-10, I-40, I-8, and U.S. 93, serious truck crashes happen regularly. Building a winning case means identifying and preserving the right evidence before it is gone.
Electronic Logging Devices and Hours of Service
Federal law limits how long truckers can drive before resting, and electronic logging devices (ELDs) record their hours. Fatigue is a leading cause of truck crashes, and ELD data can show whether a driver was over their limit. But these records are subject to retention schedules and can be overwritten.
Dispatch records, fuel receipts, and toll data can corroborate or contradict the official logs, painting a fuller picture of how long the driver had actually been on the road.
The Black Box and Maintenance Records
Most modern trucks have an event data recorder, the 'black box', that captures speed, braking, throttle, and other data in the moments before a crash. This can be decisive in proving how fast the truck was going or whether the driver braked at all. Maintenance and inspection records reveal whether the company kept the truck safe or ignored known problems.
Cargo loading records matter too: an improperly loaded or overweight trailer affects stopping distance and stability, and the company that loaded it may share liability.
How Quickly Evidence Vanishes
Trucking companies often dispatch rapid-response investigators to a crash scene within hours, working to build their own defense. Meanwhile, electronic data may be overwritten on a schedule, and physical evidence is repaired or scrapped. Without prompt action, the proof you need can be gone before you even realize you have a claim.
This is why a litigation-hold (or 'spoliation') letter, sent by an attorney demanding the company preserve all relevant records, is one of the most important early steps in a truck case.
Act Fast to Protect Your Claim
If you have been injured in a truck crash anywhere in Arizona, time is your enemy when it comes to evidence. A free case review allows an attorney to immediately send preservation demands and begin the investigation while the proof still exists.
Have questions about your own situation? Get a free, confidential case review. You pay no fee unless you win. Call 973-566-5599.
This article is for general informational purposes only and is not legal advice. For guidance on your specific situation, consult a licensed Arizona attorney.