Electronic logbook and telemetry data should be identified and preserved as soon as possible after a commercial truck crash. Trucking accidents attorneys may send preservation notices covering ELD records, GPS data, engine information, onboard cameras, and dispatch systems before routine retention processes overwrite potentially important evidence.
Why does preserving this information matter? Federal Motor Carrier Safety Administration data show that large trucks and buses were involved in 172,880 fatal and nonfatal crashes nationwide in 2024, underscoring how frequently investigators may need reliable evidence about vehicle and driver activity. Securing fleet telemetry records can help establish speed, braking, location, driving hours, and other events surrounding a collision.
What Electronic Data May Exist After a Trucking Accident?
Modern commercial trucks can record crash-related information across several separate systems. Investigators often examine three main sources of electronic evidence:
- Electronic logging devices
- Engine and event data
- Fleet tracking systems
Electronic Logging Devices
An electronic logging device records a driver’s duty status and driving time. It also tracks when the truck is moving. An electronic logging device audit can reveal whether recorded hours match the driver’s actual activity.
Engine and Event Data
Truck computers may store details about vehicle operation near a crash. Depending on the equipment, records may show speed or braking activity.
Some systems also capture throttle use. Investigators can use this information to reconstruct the truck’s actions before impact.
Fleet Tracking Systems
Trucking companies may use GPS or dispatch software to monitor vehicles. Fleet telemetry records can establish a truck’s location and movement at specific times. Onboard cameras may preserve another view of events surrounding a collision.
Why Can Electronic Logbook and Telemetry Data Disappear?
Electronic records from commercial trucks don’t always remain available for long. Several routine events can erase useful crash evidence:
- Automatic data overwriting
- Equipment and software changes
- Limited third-party retention
Automatic Data Overwriting
Some systems have limited storage and replace older information as new records accumulate. Retention periods also differ between devices and software platforms. A black box spoliation letter can formally request preservation before normal processes erase relevant records.
Equipment and Software Changes
Routine work on a truck can affect stored information. Repairs may require replacing electronic components that contain crash-related data.
Software updates can also change accessible records. A truck returned to service may continue generating information that replaces older data.
Limited Third-Party Retention
Not every record remains under the trucking company’s direct control. Outside vendors may store GPS information or other telematics data on separate servers. Their retention policies may differ from the carrier’s own practices.
How Do Trucking Accidents Attorneys Preserve Digital Evidence?
Digital evidence may exist in several places after a serious truck crash. Effective preservation often requires action across three areas:
- Preservation notices
- Third-party records
- Evidence handling
Preservation Notices
Trucking accidents attorneys can send written notices identifying electronic records that must be preserved. A black box spoliation letter may cover specific devices and stored crash data.
Detailed requests reduce confusion about what information should remain intact. They also create a record showing when the carrier received notice.
Third-Party Records
Some important data may sit outside the trucking company’s systems. A telematics provider might store vehicle locations on its own servers.
Attorneys can identify outside companies and request relevant records from them. Formal discovery or subpoenas may become necessary when voluntary access isn’t available.
Evidence Handling
Obtaining the files is only part of preservation. Attorneys may seek original data with its metadata intact.
Metadata can show details about a file’s creation or modification. Investigators may also document when evidence was collected and who handled it afterward. Careful records can strengthen later efforts to establish authenticity.
How Can Electronic Records Reveal Driver Fatigue or Safety Violations?
ELD records show periods when a driver reported driving or resting. An hours of service violation may appear when recorded driving exceeds federal limits. Investigators can also examine whether required rest periods occurred before the crash.
Independent Time Records
Other records can test the accuracy of a driver’s electronic log. GPS timestamps may show a truck moving during a reported rest period.
Dispatch records can reveal when a driver received or completed an assignment. Comparing separate sources may expose gaps that one record alone would miss.
Vehicle Activity
Engine data can establish when a truck was operating near the collision. Investigators may compare those times with the driver’s reported schedule. Truck driver fatigue evidence becomes stronger when several independent records show unusually long periods of activity.
Frequently Asked Questions
How Long Must Motor Carriers Keep Electronic Logging Device Records?
Federal rules generally require motor carriers to retain ELD records and supporting documents for six months. However, other digital information may follow different retention schedules.
GPS platforms or onboard cameras may store data for much shorter periods. An electronic logging device audit can identify what records exist and whether required information remains available.
Can Deleted Trucking Data Ever Be Recovered?
Deleted data isn’t always permanently lost. Recovery depends on how the system stored the information and whether newer data replaced it. A forensic examiner may create an exact copy of a device’s storage for analysis.
Cloud backups may contain another version. Once information has been overwritten, however, recovery may become difficult or impossible.
What Happens If a Trucking Company Destroys Evidence After Receiving a Preservation Notice?
Destroying relevant evidence after a duty to preserve it arises may constitute spoliation. Courts can examine why the evidence disappeared and whether its loss harmed another party.
Depending on the law and circumstances, consequences may include sanctions or limits on certain arguments. An hours of service violation may become harder to prove when relevant records are destroyed.
Accident Legal Help
Trucking accidents attorneys can secure records that document driving activity, vehicle behavior, and timing, giving investigators stronger evidence when determining what happened before a crash.
At Durham Law Firm, we bring more than 20 years of legal experience to personal injury and criminal cases in Nevada and Utah. Our team combines the skills of attorneys, paralegals, case managers, and support staff to pursue every available path forward. We’ve recovered millions for clients through detailed preparation and dedicated representation.
Get in touch today to find out how we can help with your case.
