Evidence through 4 September 2026. A public-interest reference, not a live emergency service.

CHT Atlas

Sensitive data and maps

Rules, examples, limits and public accountability.

Version 1.0 · Owner: Safety editor · Effective 4 September 2026 · Annual and event-driven review

Evidence service

Governing rules

  1. Use open, transformed, metadata-only, controlled and restricted classes.
  2. Assess group and geospatial re-identification risk.
  3. Generalize tiny settlements, disputes, survivors and sacred sites.
  4. Record owner, trigger and review date.

Limit: This policy does not create legal advice, confidentiality, emergency response or evidence that has not been obtained.

Evidence service

Ownership and review

Policy record
RecordStatusUse and limitation
Version1.0Public policy
OwnerSafety editorAccountable editorial role
CadenceAnnual and event-drivenEarlier after correction, safety issue or authoritative change
Correction routecorrections.htmlAppeal and propagation process

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