Overview#
Redaction is only reliable when the hidden material is actually gone. A black box drawn over text is not enough if the original text layer can still be selected, searched, copied, or recovered from the file structure. Evidence Redaction Burn-In Export creates disclosure packages where approved redactions are permanently applied and hidden text is removed before export.
The module is designed for public records teams, prosecutors, investigators, commissions, and regulated organisations that need to release evidence safely. It combines approval gates, irreversible burn-in, text-layer destruction, package manifests, and chain-of-custody evidence so reviewers can prove what was removed and what was disclosed.
Key Features#
- Irreversible Burn-In: Approved redactions are rendered into the exported document so the redacted output no longer depends on editable overlays.
- Text-Layer Destruction: Hidden or covered text is removed from the export so recipients cannot recover redacted content through selection, search, or metadata inspection.
- Approval-Gated Export: Exports require the appropriate review state before a redacted package can be produced.
- Segregation of Duties Support: Organisations can separate the person who drafts a redaction from the person who approves it.
- Package Manifest: Each export includes a manifest of files, hashes, redaction state, review status, and generation timestamp.
- Disclosure Audit Trail: Recipient, purpose, package state, and access events are recorded for later legal or compliance review.
- Failure-Safe Handling: If rendering, text removal, hashing, or audit recording fails, the package is not released.
Use Cases#
- FOIA and Public Records Release: Records teams export redacted documents that cannot reveal hidden personal information after release.
- Criminal Disclosure: Prosecutors prepare defence disclosure packages with a clear record of approved redactions and export integrity.
- Commission Evidence Publication: Inquiry teams publish exhibits while protecting witnesses, victims, protected addresses, and operational details.
- Internal Affairs Review: Investigators release redacted reports to oversight bodies without exposing unrelated personal data.
- Healthcare and Social Care Records: Organisations disclose records with third-party information permanently removed.
Integration#
Redaction burn-in connects to evidence management, OCR text review, redaction drafting, approval workflows, disclosure packaging, recipient access tracking, legal hold, and immutable audit logging. It works with provenance tracking so every redacted output remains linked to the original source material and review decisions.
Open Standards#
- PDF/A, ISO 19005: Disclosure packages can be rendered for long-term archival preservation.
- ISO 32000, Portable Document Format: Redaction handling aligns with the standard PDF document model and rendering expectations.
- RFC 3161 Time-Stamp Protocol: Export packages can receive trusted timestamps that prove when the package existed.
- FIPS 180-4, SHA-256: Files and manifests are hashed for tamper evidence.
- W3C PROV-DM: Redaction drafting, approval, rendering, and delivery are modelled as provenance activities.
- GDPR, Regulation (EU) 2016/679: Supports data minimisation and privacy-safe disclosure of records containing personal data.
- FBI CJIS Security Policy: Criminal justice evidence exports can align with CJIS handling and audit expectations.
Last Reviewed: 2026-06-26 Last Updated: 2026-06-26