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Citizens Transparency Institute

Find the record. Test the claim. Know what is held about you.

Public beta · Reviewed 15 Aug 2026
Safety, Privacy & Ethics

Investigate the matter without creating a second harm.

A default-deny research doctrine for lawful access, necessity, proportionality, personal-data minimization, source protection, secure handling, fair publication, and correction.

CTI public guideReviewed 15 Aug 2026Browser-local tools

Use this when

  • Planning any records, OSINT, field, personal-data, or institutional investigation.
  • Research touches vulnerable people, allegations, private addresses, identity records, active proceedings, or consequential claims.
  • You must decide what to collect, retain, share, redact, or publish.

Do not use this for

  • Rationalizing access-control bypass, pretexting, harassment, surveillance, or publication of irrelevant personal details.
  • Replacing professional legal, cybersecurity, safeguarding, or emergency advice.
  • Assuming that public availability makes publication necessary or harmless.
Before you begin

Prepare the file before you search.

  • Legitimate purpose
  • Legal and contractual authority
  • Necessity and less-intrusive alternatives
  • Data minimization plan
  • Source and account security
  • Threat model
  • Right-of-reply and correction process
  • Retention and deletion date
End-to-end method
  1. 01

    State the public-interest purpose

    Define the decision, harm, institution, or verifiable claim at issue. Exclude curiosity, retaliation, humiliation, and identity exposure from scope.

  2. 02

    Apply legality and access controls

    Use public or authorized access only. Respect sealed records, authentication, license terms, court orders, and statutory restrictions.

  3. 03

    Minimize collection

    Collect the least sensitive data needed. Generalize location, redact identifiers, separate contact information, and avoid re-identification across unrelated systems.

  4. 04

    Secure the work

    Use unique passwords, multifactor authentication, patched devices, phishing resistance, protected backups, restricted sharing, and cautious handling of unknown files and macros.

  5. 05

    Test identity and inference

    Require multiple consistent identifiers and record uncertainty. Never convert similarity or proximity into accusation.

  6. 06

    Review publication harm

    Separate necessary proof from unnecessary PII, offer a meaningful right of reply, review legal and safety risks, and avoid live location or operational details that create danger.

  7. 07

    Correct and retire data

    Publish a correction route, date material changes, preserve the evidentiary record appropriately, and delete sensitive working data when its justified retention period ends.

Working file

Take the method into your own case.

Generated locally in your browser. CTI does not receive the file.

Evidence standard

What good evidence looks like

  • Documented lawful source and access time
  • A reason each sensitive field is necessary
  • Independent identity confirmation
  • Redaction and publication-review record
  • Source-consent or confidentiality terms
  • Dated correction and version history
Failure modes & escalation

A source sends an unexpected attachment.

Do not open it on a primary device. Verify the sender through another channel, scan and isolate the file, disable active content, and preserve the original securely if legitimate.

A finding identifies a vulnerable person.

Pause. Test necessity, public interest, alternatives, location generalization, consent, and likely downstream harm before any sharing.

An account or source may be compromised.

Stop collection, preserve relevant logs, rotate credentials from a clean device, revoke sessions, enable MFA, and obtain specialist help when risk is material.

The subject disputes the finding.

Preserve the response, test its documents and timeline with the same rigor, correct factual error promptly, and distinguish unresolved disagreement from established contradiction.

Worked patterns

Public address

A home address in a filing may help distinguish entities, but publication may be unnecessary. Cite the filing and state the relationship without reproducing the address.

Field observation

Document conditions, not vulnerable people. Avoid faces, plates, live routines, private conversations, and precise locations unless essential and ethically justified.

Document metadata

Inspect and remove author names, comments, revision history, hidden sheets, geolocation, and embedded identifiers from copies intended for public release.

Authority desk

Official sources and specialist guides

Authority labels distinguish government sources from independent guidance. Links were reviewed 15 Aug 2026; procedures and law can change.

CTI provides public-interest research infrastructure and general information—not legal advice, a consumer-reporting service, or an investigative license.

Bay Evidence