Commercial Crash Evidence & Spoliation Ledger
Organize high-liability commercial motor vehicle evidence, monitor real-world overwrite countdowns against federal retention mandates, and generate verified spoliation notices.
Perishable Evidence Catalog
Monitor critical auto-delete loops and statutory preservation obligations
Why Spoliation Timelines Matter in Commercial Truck Collisions
Unlike personal auto accidents, interstate tractor-trailers operate under the Federal Motor Carrier Safety Regulations (FMCSR, Title 49 CFR) and generate multi-gigabyte forensic digital records. Without an immediate, formal Spoliation Demand Letter served on the carrier, telematics vendor, and maintenance facility, critical records can be routinely overwritten.
In jurisdictions like Texas and Oklahoma, establishing early legal notice triggers a clear duty to preserve under state and federal common law, preventing the motor carrier from destroying Black Box telemetry, forward/driver camera video, and driver qualification files under the excuse of "routine data maintenance."
FMCSR Retention Minimums vs. Practical Reality
Why do dashcam videos disappear in 7 to 14 days?
While 49 CFR §395.8 requires carriers to retain Hours of Service (ELD) logs for 6 months, there is no federal regulation mandating long-term video retention. Many commercial telematics carriers (Lytx, Samsara, Omnitracs) automatically overwrite circular camera buffers within 7 to 30 days unless a crash trigger or manual supervisor flag locks the footage.
What is required for Post-Accident Drug & Alcohol Testing?
Under 49 CFR §382.303, alcohol testing must be conducted within 2 hours (or within 8 hours with documented justification for delay). Controlled substance testing must occur within 32 hours if there was a fatality or a citation issued with disabling vehicle damage.
What data does the Heavy Vehicle ECM/EDR capture?
Electronic Control Modules (DDEC, Cummins, PACCAR, CAT) record sudden deceleration, clutch switch engagement, brake line air pressure, RPM, throttle position, and engine fault codes. Secondary power cycling or towing recovery attempts can overwrite volatile crash buffers.