How Houston Truck Accident Lawyers Investigate 18-Wheeler Crashes in Houston

The most useful evidence depends on the facts of the crash, but certain categories recur in serious truck accident cases.

Black Box, ECM, and Event Data Recorder Evidence

Electronic data from these devices shows the truck’s operation before the impact. Depending on the system, it may reveal speed, braking, throttle position, hard braking events, steering inputs, engine activity, and other details. This type of information can indicate whether the driver tried to avoid the crash or failed to brake in time.

Hours-of-Service and ELD Records

Driver fatigue is a serious truck safety issue. Electronic log records, logbooks, trip records, fuel and toll receipts, dispatch records, and cell phone data may show if a driver exceeded legal duty hours or falsified rest times.

Driver Qualification File

The driver qualification file includes documents showing whether the company hired and retained a qualified driver. This file may include the employment application, driving history, a medical certificate verifying fitness to drive, results from a road test, checks with prior employers, and other records related to the driver’s fitness for duty.

Maintenance, Inspection, and Repair Records

A trucking company must maintain safe equipment. Maintenance files can show brake problems, tire and lighting issues, steering and trailer defects, missed inspections, or unsafe repairs. If mechanical failure contributed, these records become central evidence.

Cell Phone, Dispatch, and Communication Records

Phone and dispatch records can reveal driver distraction, pressure to meet deadlines, or unsafe communication during trips. These records may also confirm route timing and the accuracy of other records.

Video Footage and Scene Evidence

Dash cams, business cameras, traffic cameras, and witness photos can show traffic position, flow, braking, turns, road hazards, and event sequence. Scene evidence, such as skid marks, debris, and vehicle damage, can be key to reconstruction.

Cargo and Loading Records

Improper loading can cause rollovers, jackknifes, cargo shifts, and loss of control. Bills of lading, weight tickets, loading instructions, and securement records can show cargo safety and potential company fault.

Police Reports and Witness Statements

Police reports are important, but only a starting point. Officers often lack access to company records and electronic data when creating their reports. Early witness statements are more valuable than physical evidence.