Child protection case files

Identifies documents containing references to child protection case files in Australian contexts. This information type is classified as personally identifiable information under the Privacy Act 1988.

Type: regex
Engine: boost_regex
Confidence: medium
Confidence justification: category-aware structural regex with anchor and context constraints replaces phrase-only detection. Added context gating and exclusion rules improve precision and reduce incidental matches.
Detection quality: Topic false positive
Jurisdictions: global
Regulations: Anti-Money Laundering and Counter-Terrorism Financing Act 2006 (Cth), Information Privacy Act 2009 (Qld), NDB Scheme (Cth), Privacy Act 1988 (Cth), GDPR
Frameworks: ISO 27001
Data categories: government-id, pii
Scope: wide
Risk rating: 9
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?is)\b(?:child\s+protection\s+case\s+files|child\s+protection|child\s+safety|mandatory\s+reporting|risk\s+of\s+harm|care\s+order|family\s+services|out[\s-]+of[\s-]+home\s+care|parental\s+responsibility)\b

Corroborative evidence keywords

child protection case files, child, protection, case, files, government, citizen, services, agency, department, ministry, public sector, civil service, welfare, social services, public administration, statutory authority, regulatory body, public servant, government program (+26 more)

Proximity: 300 characters

Should match

child protection case files — Primary topic phrase match
child protection — Case-insensitive topic phrase match
child safety — Alternative topic phrase match
mandatory reporting — Additional topic phrase match
child protection case files Child: Riley Teston Date of birth: 14/05/2019 Case number: CS20264471 Parent: Jordan Teston Notes: child protection case files opened after a notification on 12/08/2026. — Populated child record reaching the 75/85 structure gate

Should not match

unrelated generic text without domain phrases — No relevant topic phrases present
placeholder value 12345 — Random text should not match topic-specific regex
welfare registry — Generic word pair from old broad template should not match
Policy guidance: this procedure explains how records about child protection case files are handled, who may access them and how long they are kept. It contains no records about any person or system. — Policy guidance naming the topic without any record (discovery only)

Known false positives

Common words and phrases related to child protection case files appearing in policy documents, training materials, HR templates, or compliance guidelines without actual personal data. Mitigation: Require corroborative evidence keywords within the proximity window to confirm sensitive data context rather than general discussion.
In Australian English, similar terminology used in formal or administrative contexts (education, professional documentation) that does not constitute sensitive data collection. Mitigation: Layer with additional contextual signals such as structured identifiers, form fields, or database column headers to distinguish sensitive records from general references.
High-frequency pattern matches in large document corpora due to broad regex anchors. Expected match rate is significantly higher than specific identifier patterns. Mitigation: Tune confidence thresholds for bulk scanning. Consider using this pattern primarily as a pre-filter with secondary validation.