The Preservation Letter Sent to an Opponent

The preservation letter is the least powerful document in the process and one of the most consequential. It orders nothing, is enforced by nobody, and can be filed in a drawer without consequence. What it does is remove an argument. After a letter describing a dispute in specific terms, a recipient cannot plausibly maintain that litigation was unforeseeable, and the duty to preserve is dated from that point at the latest.

What the letter is for

Three purposes are usually in play. The first is notice, and it is the only one that operates automatically. The second is guidance: a letter that names systems and custodians tells the recipient where to look, which makes it harder to claim later that the relevant sources were unknown. The third is positioning, because the letter becomes an exhibit if evidence goes missing.

None of these depends on the recipient agreeing to anything. The letter works on the record rather than on the recipient's obligations, which is why its wording is drafted with a later reader in mind. A demand that a judge would regard as reasonable and specific carries weight; one that reads as a template does not.

The letter is also frequently the first substantive communication between the parties. It sets a tone, and an aggressive one invites a defensive reply that forecloses the informal cooperation on scope that would otherwise save both sides money. Rule 1 directs that the rules be construed to secure a just, speedy and inexpensive determination, and preservation disputes are among the easiest places to lose all three.

What a useful letter specifies

Specificity is the whole of the drafting problem. The recipient has to be able to convert the letter into instructions, and a demand phrased at the level of "all relevant documents" cannot be converted into anything. Four elements do most of the work: the subject matter in recognizable terms, the individuals likely to hold material, the systems and applications involved, and a date range.

Naming systems requires some knowledge of the recipient's operations, which the sender may not have. Where it does not, the better course is to describe functions rather than products — the messaging platform used by the sales team, the ticketing system that recorded the complaints — and to ask the recipient to identify the corresponding sources. That request is also the opening of a negotiation about scope.

Custodian names carry a similar weight. A sender who has read the correspondence usually knows three or four people who must hold relevant material, and naming them converts a general demand into one the recipient can act on within a day. It also creates a checkable list: if those custodians' records are later incomplete, the recipient cannot say it did not know whose files mattered.

The date range deserves particular attention. An open-ended demand running from an unspecified past to the present is the one element most likely to be characterized as disproportionate, and it is unnecessary in most disputes. A bounded period focused on the events in question is both easier to comply with and harder to resist.

What the letter cannot do

A preservation letter is private correspondence. It does not issue from a court, it is not served, and there is no mechanism by which a recipient can be held in contempt for disregarding it. Sanctions under the federal rule are triggered by the loss of information that should have been preserved and by the failure to take reasonable steps, not by silence in reply.

There is one further limit worth stating plainly. A letter cannot reach anyone who is not its recipient. Records held by a supplier, a payroll processor or a cloud platform are outside its scope unless the recipient controls them, and a sender who wants those records secured has to identify the holder and use process against that holder directly.

Nor does the letter enlarge the duty. If a category of records was outside the scope of what a reasonable party would preserve, a demand does not bring it inside. The recipient may reasonably decline to freeze systems that hold nothing relevant, and courts have declined to treat non-compliance with an unreasonable demand as evidence of anything.

How a recipient handles one

Receipt of a letter is an event that starts an internal process even if no reply is sent. It confirms anticipation, which means a hold notice to the identified custodians and the suspension of automated destruction follow immediately. Doing that quietly and answering nothing is a defensible course, though it forfeits the chance to narrow the demand.

A reasoned reply has advantages. Stating which categories will be preserved, identifying which demands are declined and why, and inviting a discussion of scope creates a record that the recipient engaged. If material is later lost from a category the recipient expressly declined to preserve, the argument has already been framed and is about what proportionality required rather than about indifference.

What a recipient should not do is treat the letter as the trigger. The duty may well have attached earlier, at the point litigation first became reasonably foreseeable, and dating the hold from the letter concedes nothing but proves nothing either.

When an order is the better route

Where there is a real risk that evidence will disappear, correspondence is the wrong tool. Once a case is filed, the parties are directed to address preservation in their discovery plan, and the resulting agreement can be written into a scheduling order. That converts a request into an obligation enforceable by the ordinary means.

Courts have discouraged reflexive applications. A preservation order sought at the outset of every case, without any indication that records are at risk, is often refused on the ground that the common-law duty already applies and an order adds cost without adding protection. The applications that succeed tend to describe a specific system with a short retention cycle, or conduct already observed.

A standalone preservation order is available on motion, though courts issue them sparingly and usually require a showing of concrete risk rather than general concern. The order can be more precise than a letter — naming systems, fixing a retention window, allocating cost — and non-compliance is contempt rather than a factor. Where material sits with someone who is not a party, the subpoena, not the letter, is the instrument that reaches it, and loss after service is assessed under the rule governing lost electronic evidence.