What should an investigation case file template include?
A useful investigation case file does more than store notes. It should make the status of the matter understandable: what is known, what remains unresolved, where information came from and what needs to happen next.
1. Case intake and scope
Start with a clear case identifier, date opened, matter type, purpose, scope, responsible owner and the questions the work is intended to address. This prevents the file from becoming a collection of information without a defined objective.
2. Chronological timeline
Record material events in date and time order. Separate the event itself from the source supporting it, its verification status and any follow-up created by that event.
3. Lead and action tracking
A lead should not disappear into narrative notes. Track the lead, its priority, owner, next action, due date, status and outcome. This makes unresolved work visible during review.
4. Source documentation
For each important item, preserve enough attribution to understand where it came from, when it was obtained, what it supports, known limitations and whether additional corroboration is needed.
5. Interview and contact records
Keep interview preparation, contact attempts, outcomes, unresolved questions and promised follow-up connected to the case rather than scattered across separate notes.
6. Review and closure
A structured review should identify open questions, overdue actions, conflicting information and documentation gaps before the matter is summarized or closed.
Start with the free checklist
Use the free Investigation Case File Checklist to review case setup, timelines, leads, sources, interviews, actions and case review. For a step-by-step workflow, read How to Organize an Investigation Case File and what to include in a case-management spreadsheet.
Template options
If you only need chronology and lead follow-up, see the CaseWorks Timeline & Lead Tracker. For an end-to-end workflow connecting intake, timelines, leads, sources, interviews, actions and review, see the Investigation & Case Management System.
Compare all CaseWorks investigation templates by task →
General organizational information, not legal advice or an official government or law-enforcement procedure.