A case activity log or field activity log records the work performed as an investigation develops. It is different from an event timeline: the timeline shows when underlying events happened, while the activity log shows when investigative, field or research work was actually performed.
What should a case activity log include?
A practical log can include activity date and time, activity type, concise description, location when relevant, related case item or lead, source/document reference, people contacted, outcome, next action and responsible owner.
Field activity log vs. case activity log
The terms can overlap. A field activity log usually emphasizes work performed away from the primary office or system—such as contacts, visits, observations or other authorized field activity. A case activity log can be broader and include interviews, document review, research, correspondence, lead follow-up and case review. In both cases, the purpose is to preserve a dated record of work performed.
Activity log vs. investigation timeline
A record reviewed today may describe an event from months earlier. An interview conducted today may clarify something that happened last week. Record the investigative work under today's activity date while placing the underlying event under its actual event date in the chronology. Keeping those dates separate prevents the two records from becoming confused.
Useful field-tracking entries
For field work, record activity close to the time it occurs so contacts, locations, records reviewed, outcomes and follow-up are not reconstructed later from memory. Keep entries concise but specific enough to identify what was done, what resulted and what record or lead it relates to.
Use consistent activity categories
Categories might include field activity, document review, public-record research, contact attempt, interview, source review, records request, lead follow-up, correspondence or case review. Consistent categories make longer matters easier to scan and filter.
Record outcomes—not just attempts
A useful entry should answer more than “worked on case.” Record the action performed and its result. No response, no useful information found or a request still pending can all be meaningful outcomes because they help prevent unnecessary duplicate work.
Reference detailed records instead of duplicating them
Use the activity log as an index into interviews, documents, leads and actions. Reference the related record or identifier rather than copying entire interviews or source records into the log.
Turn resulting work into visible follow-up
If an activity generates a new question, contact, records request or task, move that unresolved work into the appropriate lead or action tracker. The activity log preserves what happened; the tracker keeps what still needs to happen visible.
Common activity-log mistakes
- Mixing event dates with work dates.
- Using vague entries such as “case work.”
- Recording attempts but not outcomes.
- Burying next actions inside narrative notes.
- Duplicating entire interview or document records.
- Failing to reference the lead, source or case item connected to the activity.
Start with a free case-file review
Use the Free Investigation Case File Checklist to review chronology, leads, sources, interviews, actions and case review. No signup is required.
Need activity tracking connected to the case?
The $79 Investigation & Case Management System connects case organization with timelines, leads, sources, interviews, actions and review. If chronology and follow-up are the immediate problem, use the $15 Timeline & Lead Tracker.
Frequently asked questions
Is a field activity log the same as a case activity log?
They can overlap. Field activity usually emphasizes work performed in the field, while a case activity log can cover the broader sequence of investigative work.
Is an activity log the same as an investigation timeline?
No. The activity log records when work was performed; the timeline records when underlying case events occurred.
Should every small task be logged?
The appropriate detail depends on the workflow and applicable requirements. Meaningful work, outcomes and resulting follow-up are generally more useful than trivial entries.
General organizational information only; not an official form, legal advice or government procedure.