JusticeFinder Tool

Spoliation / Evidence Preservation Letter Generator

The most important evidence in a crash claim — black-box data, dashcam, ELD logs, and CCTV — is often overwritten or destroyed within days or weeks. A spoliation letter puts the other side on formal notice to preserve it, and warns that destroying it can trigger an adverse-inference instruction. Generate one for your accident type in minutes.

Start Tool Open Spreadsheet Download Template

Build your preservation letter

Pick your accident type, toggle the evidence to preserve, and fill in the parties. The certified-mail letter rebuilds live, then copy or download it.

Accident typeThis sets the evidence-to-preserve list and the urgency window.

Truck ECM and ELD data can be overwritten within ~30 days or after the next trip, and dashcam loops record over quickly. Send this immediately.

Evidence to preserveToggle items to include in the letter.

Engine Control Module (ECM/ECU) and event dataElectronic Logging Device (ELD) hours-of-service recordsDashcam and onboard camera footageDriver qualification file, logs, and drug/alcohol testing recordsVehicle inspection, maintenance, and repair recordsBills of lading, dispatch, and trip records

Your name

Your email or phone

Recipient / company

Incident date

Recipient mailing address

Brief incident description

Preview

VIA CERTIFIED MAIL, RETURN RECEIPT REQUESTED

[Your name]
[Your email / phone]

June 20, 2026

[Recipient / company name]
[Recipient mailing address]

Re:  NOTICE TO PRESERVE EVIDENCE (Spoliation Notice)
Incident of [date of the incident]: [brief description of the incident — location, vehicles/parties involved]

To [Recipient / company name]:

I am writing to provide formal notice that you are required to preserve all evidence relating to the incident described above, which is reasonably likely to be relevant to anticipated litigation. This letter places you on notice of your duty to preserve.

Please immediately preserve and do NOT alter, delete, overwrite, repair, discard, or destroy the following, including any electronic and physical evidence within your possession, custody, or control:

   •  Engine Control Module (ECM/ECU) and event data
   •  Electronic Logging Device (ELD) hours-of-service records
   •  Dashcam and onboard camera footage
   •  Driver qualification file, logs, and drug/alcohol testing records
   •  Vehicle inspection, maintenance, and repair records
   •  Bills of lading, dispatch, and trip records

This duty extends to all originals, backups, metadata, and automatically generated records, and you must suspend any routine destruction, retention, or overwrite policies that could affect this evidence.

Be advised that the loss, alteration, or destruction of relevant evidence after receiving this notice may constitute spoliation, which can result in evidentiary sanctions and an adverse-inference instruction — meaning a court may instruct the fact-finder to presume the missing evidence was unfavorable to you.

Please confirm in writing within ten (10) days that you have taken steps to preserve this evidence. You may reach me at the contact information above.

Sincerely,

[Your name]

Generated in your browser — nothing is saved or sent. Send by certified mail (or a method you can prove) so you have a record of the date the duty to preserve was triggered.

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Why preservation can't wait

The evidence that decides a claim is often the first thing to disappear.

Modern crash evidence is largely electronic and short-lived. A truck's engine module and hours-of-service logs can roll over within weeks or after the next trip; dashcams overwrite on a loop; and a store's surveillance system usually records over footage in two to four weeks. Once it's gone, it's gone — and so is your proof.

A spoliation letter changes the legal picture: it documents that the other side was on notice of its duty to preserve, so destroying the evidence afterward can carry real consequences instead of being written off as routine.

What to preserve by accident type

The generator tailors the demand to where the decisive evidence actually lives.

Commercial vehicles

ECM/event data, ELD hours-of-service logs, dashcam footage, the driver qualification file, and maintenance records — the highest-value, fastest-disappearing evidence in trucking cases.

Cars, rideshare & premises

Event Data Recorder data and dashcam for cars; in-app trip and driver-status data for rideshare; and CCTV plus inspection logs for slip-and-fall and premises claims.

Related Resources

Use these pages and documentation tools to validate the estimate, preserve evidence, and keep the claim file organized.

Related Tool

Evidence Checklist & Organizer

Track the records, photos, and proof you still need alongside the preservation demand.

Related Tool

Medical Records Request Generator

Pair the preservation letter with a HIPAA-correct request for your own treatment records.

Guide

Truck Spoliation Guide

Read the long-form guide on preserving black-box, ELD, and dashcam evidence in trucking cases.

Spreadsheet

Evidence Log

Log every item, who holds it, and the date you demanded preservation.

Frequently Asked Questions

What is a spoliation letter?

It is a formal notice that puts a person or company on notice of their legal duty to preserve evidence relevant to anticipated litigation. Sending it early helps stop routine deletion or overwriting.

Why does timing matter so much?

Critical evidence is often on a short clock: truck ECM/ELD data can be overwritten within about 30 days or after the next trip, dashcams loop quickly, and CCTV systems typically record over footage on a 14–30 day cycle.

What is an adverse-inference instruction?

If relevant evidence is destroyed after a preservation duty arises, a court may instruct the fact-finder to presume the missing evidence was unfavorable to the party that destroyed it. That risk is what gives the letter its weight.

How should I send it?

Use a method you can prove, such as certified mail with return receipt, so there is a clear record of when the recipient was placed on notice of the duty to preserve.

Educational Use Disclaimer

This tool is for educational use only and does not create an attorney-client relationship or constitute legal advice. The duty to preserve, the proper recipients, and the consequences of spoliation vary by jurisdiction and the facts of your case. Review the letter and consult a licensed attorney — especially in serious or commercial-vehicle cases — before sending.

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