Commercial crashes generate evidence that a company can lawfully overwrite or recycle on a schedule. The sooner a spoliation letter goes out, the more of it survives.
Electronic logging data showing how long the driver had been on duty and whether the carrier pushed past federal limits.
Speed, braking, and throttle in the seconds before impact, pulled before the vehicle is fixed, sold, or scrapped.
Brake, tire, and repair history that shows whether the company kept the vehicle road-safe or deferred known problems.
Driver qualification, training, prior violations, and the records that tie the company to the crash.
In-cab and fleet camera footage plus GPS telematics, subpoenaed before the retention window closes.
Disclosure of the commercial primary, excess, and umbrella layers, not only the policy the adjuster volunteers.