What Is a Preservation Letter?
A Preservation Letter is a formal written request that tells a person, business, insurer, or other custodian to preserve evidence connected to a potential legal claim. The letter identifies relevant materials, such as a defective product, inspection records, photographs, communications, or electronic data, and warns against altering, destroying, or discarding them.
Quick Facts About Preservation Letter
Category
Evidence preservation tool
Used for
Protecting claim-related evidence
Common confusion
Not the same as a subpoena
Also called
Evidence Preservation Letter, Spoliation Letter
Often discussed with
Defective Product Claims
Key Takeaways About Preservation Letter
- It targets evidence held by another person or organization.
- The request should identify relevant records and physical items.
- It does not itself prove liability or guarantee evidence preservation.
How Preservation Letter Works

A Preservation Letter identifies evidence that may relate to a defective product claim and asks the recipient to keep that evidence intact. The request may cover the product itself, packaging, sales records, testing materials, maintenance information, photographs, and digital communications. Its practical purpose is to create a clear record that the recipient knew the evidence could matter.
Related glossary terms: Spoliation, Chain of Custody, Product Recall.
The letter usually connects each requested item to the event or alleged defect. A product manufacturer, seller, distributor, or service provider may hold different parts of the evidence. A spoliation issue can arise when relevant material is lost, changed, or destroyed after a preservation duty develops. A preservation request does not decide fault, establish causation, or replace formal discovery tools such as a subpoena.

From the Atlanta Auto Law team
When we handle a defective product claim, we identify the people and organizations that may control relevant evidence. We prepare preservation requests that describe the product, incident, and records with enough detail to guide collection. We also track responses and follow up when the requested material needs clarification.
Preservation Letter in Practice: A Real-World Example
A customer is injured when a household device overheats during ordinary use. A Preservation Letter asks the manufacturer and seller to retain the device, packaging, purchase records, testing materials, and communications about similar complaints.
Related Services
Related Terms
Spoliation
Spoliation is the loss, destruction, alteration, or failure to preserve evidence that may relate to a…
Chain of Custody
Chain of Custody is a documented record of an item’s possession, handling, transfer, storage, and condition…
Product Recall
Product Recall is a formal action to remove, repair, replace, or warn about a product that…
Expert Witness
An Expert Witness is a qualified professional who gives specialized opinions in a legal dispute. An…
Atlanta Auto Law
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