Most PI firms agree that preservation letters matter. Fewer have a system that reliably sends them in time. Surveillance video overwrites in days or weeks. Vehicle telematics and event data can be lost when a car is salvaged. Trucking carriers may retain some records only for limited periods. Phone records and app data have their own retention cycles. When the preservation letter waits until the assigned attorney gets to the file, the evidence is often already gone. The fix is operational: a workflow that treats preservation as an intake task, driven by templates and triggers rather than individual memory.
Move preservation to intake
The core design decision is ownership. In firms where preservation letters are attorney tasks, they compete with deadlines, depositions, and trial work, and they slip. In firms where they are intake tasks, performed by trained staff using approved templates and reviewed by an attorney on a short cycle, they go out the same day the client signs.
That does not mean intake staff draft legal correspondence from scratch. It means the firm builds a library of attorney-approved templates, each tied to a case type and evidence category, and trains intake to select and complete the right ones based on information captured during the intake call.
The template library
A practical library is organized by evidence source rather than case type, because a single case often needs several letters. Common templates include:
- Commercial premises. Surveillance video across a defined time window, incident reports, inspection and maintenance logs, and employee schedules.
- Vehicle owner and insurer. The vehicle itself, event data recorder contents, infotainment and telematics data, and repair records, with a request not to salvage or repair before inspection.
- Commercial motor carrier. ELD and hours-of-service records, dispatch communications, driver qualification files, dashcam footage, and post-crash inspection records.
- Rideshare and delivery platforms. Trip data, app status, GPS logs, and driver communications.
- Public entities. Traffic camera footage, signal timing records, and maintenance records, often paired with a public records request.
- Third-party businesses near the scene. Exterior camera footage from nearby gas stations, stores, and residences.
- Medical providers. In medical negligence cases, the complete record including audit trails and imaging in native format.
Each template should identify the incident specifically, list the categories of evidence with enough detail to defeat a narrow reading, request native formats where relevant, and request suspension of routine deletion. Attorneys should review and update the library at least annually as technology and retention practices change.
Intake triggers
The intake form should capture the information that determines which letters are needed. A few questions do most of the work:
- Where did the incident occur, and what businesses or properties were nearby?
- What vehicles were involved, who owned them, and where are they now?
- Was a commercial vehicle, rideshare, or delivery driver involved?
- Did police, fire, or other agencies respond?
- Are there known cameras at or near the location?
- When did the incident occur? Recent incidents trigger urgent handling.
Many case management platforms allow conditional task creation based on intake fields. A yes on a commercial vehicle question can automatically generate a task to send the carrier template. Where the platform does not support automation, a simple checklist on the intake form serves the same function.
Urgency tiers
Not every letter is equally urgent. A practical approach uses tiers based on likely retention:
- Same day. Video from commercial or third-party cameras, vehicles at tow yards or body shops, and any incident within the past 30 days.
- Within 48 hours. Commercial carrier records, platform data, and public entity footage.
- Within one week. Medical records with audit trails and other records with longer retention.
Same-day letters should go by email and an overnight trackable method. Where the recipient is a retail chain or carrier, send copies to both the local location and corporate risk management or the claims department.
Attorney review without delay
To keep attorney oversight from becoming a bottleneck, set a short review window. One workable approach: intake prepares letters from templates, a designated attorney reviews and approves them within a few hours, and urgent letters go out before end of day. For truly time-critical evidence, firms sometimes authorize trained staff to send approved templates without individual review, subject to next-day audit.
Tracking and follow-up
Sending the letter is only part of the job. A tracking log, either within the case management system or as a firm-wide report, should record:
- Recipient, date sent, and delivery method.
- Delivery confirmation.
- Any response, including acknowledgments and refusals.
- Follow-up dates for unanswered letters.
- Evidence actually obtained.
Unanswered letters to high-value targets should trigger follow-up calls within a week. Where a business refuses to preserve or indicates evidence has already been deleted, document the response; it may support spoliation remedies later.
Measuring the workflow
Firms that manage this well track a few metrics: median time from signing to first preservation letter, percentage of cases with letters sent within the target tier, and rate of evidence actually obtained. Reviewing those metrics quarterly shows whether the workflow is working and where it breaks down. Related intake operations coverage appears in our practice operations section, and evidence-specific preservation issues are covered by practice area, including trucking.
The bottom line
Preservation is time-critical, repetitive, and highly suited to process. Move ownership to intake, build an attorney-approved template library organized by evidence source, use intake questions to trigger the right letters, assign urgency tiers, and track responses. The firms that get this right obtain evidence their competitors lose, and that difference shows up in case values.
