What is Legal Hold?
A legal hold is a process that requires an organization to preserve all potentially relevant information, including documents and electronically stored information (ESI), as soon as litigation is reasonably anticipated. It is also called a litigation hold, and its purpose is to suspend the normal deletion, recycling, or destruction of records so that evidence remains available for discovery.
The hold is the practical mechanism for meeting a broader legal obligation known as the duty to preserve. Once you reasonably anticipate a lawsuit, investigation, or audit, you cannot keep routinely shredding files or auto-deleting emails that might matter to the case.
How a legal hold works
A legal hold is usually triggered before a complaint is even filed, the moment litigation becomes reasonably foreseeable (for example, after a demand letter, a serious workplace complaint, or a threatened claim). Counsel then identifies what must be kept and tells the right people to keep it.
The process typically involves:
- Triggering event. A circumstance that makes litigation reasonably anticipated, which is when the duty to preserve attaches.
- Hold notice. A written instruction (the legal hold notice or litigation hold letter) sent to custodians who control relevant information, directing them not to delete or alter it.
- Identifying custodians and scope. Determining whose records, which systems, and what date ranges are potentially relevant.
- Suspending auto-deletion. Pausing document retention policies, email purge schedules, and overwrite cycles for the affected data.
- Monitoring and reminders. Following up so custodians actually comply, and issuing reminders as the matter continues.
- Release. Lifting the hold in writing once the matter resolves and preservation is no longer required.
Legal hold vs document retention policy
A legal hold and a routine retention policy pull in opposite directions, which is why a hold has to override the policy when both apply.
| Feature | Legal Hold | Document Retention Policy |
|---|---|---|
| Purpose | Preserve evidence for a specific matter | Manage records over their normal lifecycle |
| Trigger | Litigation reasonably anticipated | Routine business operations |
| Effect on deletion | Suspends scheduled deletion | Schedules and authorizes deletion |
| Duration | Until the matter resolves | Ongoing and recurring |
| Scope | Information relevant to the dispute | Categories of records generally |
When a hold is in place, it controls. Continuing to delete on the normal schedule for held data can lead to spoliation.
Scope and ESI
The scope of a legal hold reaches far beyond paper. ESI includes email, chat messages, text messages, documents, spreadsheets, databases, voicemail, cloud storage, and collaboration tools. Modern preservation also has to account for ephemeral and auto-deleting messaging, backup tapes, and data held by third parties or vendors.
Scope is defined by relevance and proportionality. You preserve what is reasonably likely to be relevant to the claims and defenses in the matter, across the custodians and systems that hold it. Casting the net too narrowly risks losing key evidence, while preserving everything indefinitely is costly and unnecessary.
Spoliation and sanctions
Spoliation is the loss, destruction, or alteration of evidence that a party had a duty to preserve. In federal court, the consequences for losing ESI are governed primarily by Federal Rule of Civil Procedure 37(e).
Under Rule 37(e), if ESI that should have been preserved is lost because a party failed to take reasonable steps and it cannot be restored or replaced, the court may act. Where another party is prejudiced, the court may order measures no greater than necessary to cure that prejudice. The most severe sanctions, such as an adverse-inference instruction telling the jury to presume the lost information was unfavorable, dismissal, or default judgment, require a finding that the party acted with the intent to deprive another party of the information's use in the litigation.
Other jurisdictions and state courts apply their own spoliation standards, so the exact rule depends on the forum. Either way, a documented, well-run legal hold is your strongest defense, because it shows you took reasonable steps to preserve.
Why legal hold matters
A legal hold sits at the front of nearly every dispute. Get it right and your evidence is intact and your conduct is defensible. Get it wrong and you can face sanctions, an adverse inference, or a damaged position before the merits are ever argued, which is a risk that shadows every later step, from depositions to trial.
For law firms and in-house teams, the hard parts are speed and scope: recognizing the trigger early, identifying every relevant custodian and system, and tracking compliance over months or years. That is where preparing for the broader document review phase begins, since what you preserve now defines what you can produce later.
An AI legal assistant like LegesGPT can help you draft clear hold notices, build custodian and scope checklists, and surface the preservation questions worth asking, so you move faster on the routine work while your judgment stays on the decisions that actually carry risk.
Frequently asked questions
When does a legal hold need to be issued?
A legal hold should be issued as soon as litigation is reasonably anticipated, which can be before any lawsuit is filed. Common triggers include a demand letter, a credible threat of a claim, a government investigation, or an internal complaint that signals likely litigation. Waiting until a complaint arrives risks losing evidence that should already have been preserved. The exact trigger and timing can vary by jurisdiction.
What is the difference between a legal hold and a litigation hold?
There is no difference. "Legal hold" and "litigation hold" are two names for the same process of preserving potentially relevant information once litigation is anticipated. Some organizations use "legal hold" more broadly to cover investigations and audits as well as lawsuits.
What happens if you fail to issue a legal hold?
Failing to preserve evidence can lead to spoliation and court sanctions. Under Federal Rule of Civil Procedure 37(e), a court can order measures to cure any prejudice, and where a party acted with intent to deprive another of the evidence, it can impose severe sanctions such as an adverse-inference instruction, dismissal, or default judgment. State courts apply their own standards, so outcomes vary by forum, but a documented legal hold helps show you took reasonable steps to preserve.