Decisions

What Evidence Is Required?

A practical standard for collecting enough evidence to support a decision, close a task, or justify escalation.

Use this page to determine what to collect before closing a task, making a decision, or escalating an issue.

Purpose

Evidence should allow another person to understand:

  • what happened
  • what you checked
  • what you found
  • why you concluded what you concluded

Evidence records what you observed and what method you used. It does not prove the conclusion is correct — it proves the work was performed and recorded.

Minimum evidence standard

At minimum, capture:

  • what the target or artifact was
  • when you reviewed it
  • what method you used
  • what you observed
  • what conclusion you reached

If one of those is missing, the record is probably incomplete.

Evidence by task type

For phishing triage

Capture:

  • the message or message identifier
  • sender details
  • subject line
  • link or attachment details
  • relevant screenshots
  • user interaction status
  • your classification and rationale

For suspicious login review

Capture:

  • account involved
  • time of alert or activity
  • source details if available
  • whether access was successful
  • whether the activity matches known user behavior
  • what containment or follow-up occurred

For operational testing

Capture:

  • the target
  • the objective
  • the steps performed
  • command or action context where appropriate
  • outputs or observations
  • whether the result was successful, failed, or inconclusive

For escalation

Capture:

  • the trigger for escalation
  • the facts known so far
  • the risk introduced by further action
  • what decision is needed next

Good evidence characteristics

Good evidence is:

  • specific
  • relevant
  • traceable
  • understandable
  • limited to what is necessary

Weak evidence examples

Weak evidence includes:

  • screenshots with no source context
  • copied output with no explanation
  • conclusions without observations
  • "looks suspicious" with no supporting details
  • missing timestamps or target identifiers

Evidence checklist before closing

Before you close the task, confirm:

  • I identified the correct target or artifact
  • I recorded enough detail for another person to review my work
  • My conclusion is supported by what I captured
  • I documented any uncertainty
  • I recorded any action taken or recommended

When evidence is not enough

Do not close the task if:

  • the core artifact was not preserved
  • the target is not clearly identified
  • the conclusion depends on memory
  • the rationale is not written down
  • the next reviewer would need to repeat your work from scratch

Quick action frame

CheckUse this rule
When to stopStop before closing when the artifact, method, rationale, or timeline cannot be reconstructed from the record.
Escalation triggerEscalate when the available evidence suggests broader impact but does not yet support a safe conclusion.
Evidence requiredCapture the target, time, method, observation, conclusion, and any uncertainty or follow-up action.
Next pathContinue to Do I Need to Escalate? if more risk is emerging, or return to the scenario workflow to collect missing facts.

Related pages

When to stopStop before closing when the artifact, method, rationale, or timeline cannot be reconstructed from the record.
Escalation triggerEscalate when the available evidence suggests broader impact but does not yet support a safe conclusion.
Evidence requiredCapture the target, time, method, observation, conclusion, and any uncertainty or follow-up action.
Next pathDo I Need to Escalate?