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Spotlight 02 · “Backed into a tree” — what does the EDR actually say?

Does an EDR report prove a rear-end collision simply because a vehicle experienced rear damage?

2 pages · Source updated 2026-10-11
Illustration of a vehicle data module sending hexadecimal data toward a crash report
Vehicle data → clearer evidence Concept illustration
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“Backed into a tree” — what does the EDR actually say?

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Case question

Does an EDR report prove a rear-end collision simply because a vehicle experienced rear damage?

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What the evidence showed

A customer asked whether a report from a vehicle said to have backed into a tree indicated it had instead been rear-ended. The report documented a stored event and direction-of-force information; the technical response emphasized that the report itself did not state that another vehicle rear-ended it.

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Practical takeaway

Separate recorded direction and delta-V from narrative labels. The EDR describes vehicle motion; collision circumstances still require physical and contextual evidence.

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Reading the exhibit

The technical response requested confirmation that the supplied report belonged to the vehicle in question. Direction-of-force fields alone do not verify the reported tree collision or establish that another vehicle struck it.

The source evidence exhibit is provided below.

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Related resources

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Related cases

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Evidence exhibit

Source illustration, page 2
Source illustration · PDF page 2 · Enlarge image ↗

Selected columns from the Crash Data Records excerpt supplied with the customer inquiry. All four event rows and fields through PDOF are retained; event timestamps and odometer values are omitted. The excerpt does not establish the collision circumstances.

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