# Manage a local investigation case

Attach immutable runs and record review without implying source containment.

Source: https://help.smartfact.ai/manuals/lottrail/investigation-cases

Review edition: 25 October 2026

Roles: supervisor, operator, author, reviewer, viewer

A case groups saved investigations and local review history. It does not recall stock, place quality holds or instruct another source product. Keep the operational decision and the local evidence review clearly identified.

## Create from a saved run

A Supervisor with recent authentication opens Cases, selects the exact permitted saved investigation and supplies a title and reason. A new case starts open. Assign only an eligible current Supervisor who can read its complete source scope.

Assignment does not grant access. Check the saved query, cutoff and coverage before deciding that it belongs in this case. New cases require current new-work authority.

## Add evidence without replacing it

In Add a saved investigation, choose the exact saved run and Reason for adding this investigation, then use Add saved investigation. Each run keeps its original cutoff and result. A newer run supplements the earlier one rather than replacing it.

The case's required dataset set grows to the union of its attached runs and cannot shrink. If the assigned reviewer cannot read the expanded scope, change or remove that assignment before attaching the run. Current permissions are rechecked.

A case supports at most 100 runs and 20 datasets. Do not split or rename a case merely to hide an exceeded scope; agree the intended review organisation with the responsible Supervisor.

## Record the decision

Use Add case note for the review finding and Review this case for local status, assignee and reason. Open, in review and closed describe the local investigation. Closing records your decision only; it does not establish that a source-system action happened.

A closed case must be explicitly reopened before notes or attachments are added. Reopening and scope expansion require new-work authority. Existing review, notes and closure can use finish-work authority without expanding source scope.

## Preserve history and audience

Read Review history and its older or newer pages. Changes are appended and revisions advance; an older tab can be refused after another reviewer acts. Refresh and compare current state before another decision.

If any required dataset becomes unavailable, the whole case metadata and history are withheld. A permitted early run does not disclose a later expanded case. Use [saved history](/manuals/lottrail/saved-history-and-downloads) for individual evidence and [protective controls](/manuals/lottrail/protective-controls) for urgent disclosure restrictions.