---

name: pa-workflow-litigation-discovery-first-pass-tagging
description: Use when a litigation team faces a large document set in discovery or disclosure and needs to triage documents efficiently before senior attorney review. Performs automated privilege detection, responsiveness scoring, date filtering, witness-mention extraction, and anomaly flagging — reducing senior review time by 60–80%. Applicable in US discovery, UK/DIFC/ADGM disclosure, and international arbitration document production.
license: MIT
metadata:
id: pa-workflow.litigation.discovery-first-pass-tagging
category: pa-workflow
practice_area: Litigation
jurisdictions: [US, UK, DIFC, ADGM, UAE, KSA, LB, EG]
priority: P1
intent: [discovery, document-review, privilege, responsiveness, e-discovery, tagging]
related: [pa-workflow-litigation-privilege-log-drafting, pa-workflow-litigation-witness-contradiction-finder, pa-workflow-litigation-deposition-binder-builder, pa-workflow-litigation-transcript-search-q-and-a-indexing]
source: Louis — HAQQ Legal AI (github.com/sboghossian/mini-claude-for-legal)
version: "1.0"

Discovery First-Pass Tagging

Purpose

Document review is the single largest cost center in complex litigation. This workflow runs a structured first-pass triage on a document corpus, applying five analytical lenses in sequence, and outputs a tagged, scored dataset that human reviewers can work through in priority order — dramatically reducing the time senior attorneys spend on irrelevant or clearly privileged material.

Claim: reduces senior attorney review time by 60–80% on standard commercial litigation discovery sets.

Inputs

Input	Required	Notes
Document corpus	Yes	PDF, email exports (PST/MSG/EML), Word, Excel, image files via OCR
Matter description and key issues	Yes	Defines "responsiveness" parameters
Key custodians (persons of interest)	Yes	Drives witness mention extraction
Date range of interest	Recommended	Narrows irrelevant historical documents
Privilege holders (attorneys, in-house counsel)	Yes	Required for privilege detection
Opposing party's document requests (if US discovery)	Recommended	Defines responsiveness categories precisely
Language(s) of corpus	Optional	Defaults to English; flag for Arabic, French if MENA documents are included

Tagging Methodology

Pass 1 — Privilege detection

Purpose: flag attorney-client privilege and work-product doctrine candidates before any human review.

Detection signals:

• Document is to/from a licensed attorney (in-house or external)
• Subject line or body contains legal opinion, legal advice, litigation strategy references
• Marked "Privileged," "Confidential — Legal," "Attorney-Client Communication"
• Work-product indicators: prepared in anticipation of litigation; mental impressions of counsel

Auto-redact candidates: documents where privileged content is embedded in otherwise responsive materials (e.g., an email chain where one attorney response is privileged but the attached contract is responsive).

MENA considerations:

• In-house legal teams in UAE and KSA do not always hold attorney-client privilege under local procedural rules as consistently as common-law jurisdictions. For DIFC/ADGM proceedings, English common-law privilege applies. For UAE onshore / KSA courts, in-house communications may receive less automatic protection — flag for counsel determination.
• Communications in Arabic between legal advisors and clients: same privilege analysis applies; ensure Arabic-language privilege indicators ("سري — اتصال قانوني") are included in detection patterns.

Tag: PRIVILEGE_CANDIDATE, WORK_PRODUCT_CANDIDATE, NEEDS_PRIVILEGE_REVIEW

Pass 2 — Responsiveness scoring

Score each document 0–100 for relevance to the defined issues:

Score	Label	Meaning
80–100	HOT	Directly addresses a key issue; must be reviewed first
50–79	RESPONSIVE	Related to an issue; review in standard queue
20–49	POTENTIALLY RESPONSIVE	Background or contextual; review if time allows
0–19	NOT RESPONSIVE	No apparent connection; flag for senior approval before withholding

Scoring factors:

• Key terms from document requests appear in the document
• Named custodians are authors, recipients, or mentioned
• Document falls within the date range of interest
• Document type is directly relevant (contract, invoice, board resolution, regulatory filing)

Pass 3 — Date filtering

• Flag documents outside the defined date range for potential exclusion
• Identify documents with suspicious date metadata (creation date after the dispute arose, timestamps that contradict email chain sequence)
• Cluster documents by time period to surface activity spikes (often significant in fraud and corporate disputes)

Pass 4 — Witness mention extraction

For each custodian in the key persons list:

• Extract every document where the person is named, emailed to/from, or referenced
• Build a per-custodian document index
• Flag documents where the custodian's role appears inconsistent with their stated account

Output: per-witness document package, usable directly by [[pa-workflow-litigation-deposition-binder-builder]].

Pass 5 — Anomaly flagging

Flag documents that warrant immediate escalation to senior counsel:

• Communications that appear to advise on concealing or destroying evidence
• Documents post-dating the dispute with metadata showing backdating
• References to accounts, entities, or transactions not disclosed in pleadings
• Large attachments that do not match their subject line (potential hidden documentation)
• "Destroy" / "delete" / "do not put in writing" language — evidence-spoliation risk
• Unusual encryption or document protection

Output

{
  "corpus_summary": {
    "total_documents": 14200,
    "reviewed_by_ai": 14200,
    "privilege_candidates": 340,
    "hot_responsive": 890,
    "responsive": 3100,
    "not_responsive": 9870,
    "anomalies_flagged": 23,
    "languages_detected": ["English", "Arabic", "French"]
  },
  "priority_queue": [
    {
      "doc_id": "DOC-00445",
      "date": "2023-11-12",
      "author": "John Smith",
      "recipients": ["CEO", "CFO"],
      "responsiveness_score": 95,
      "tags": ["HOT", "KEY_CUSTODIAN", "ANOMALY"],
      "anomaly_note": "Subject line says 'Board Update' but body discusses payment diversion — review immediately"
    }
  ],
  "privilege_log_export": "ready for [[pa-workflow-litigation-privilege-log-drafting]]"
}

Output for Human Review

Deliverables to the review team:

1. Hot stack (review first): 890 HOT documents in priority order
2. Privilege log export: feeds directly into [[pa-workflow-litigation-privilege-log-drafting]]
3. Anomaly memo: 23 flagged documents with explanation
4. Per-custodian packages: indexed document sets for each key witness
5. Not-responsive list: subject to attorney sign-off before withholding

Jurisdictional Notes

• US (FRCP): Responsive to opposing party's Rule 34 requests. Privilege log required under Rule 26(b)(5). Spoliation sanctions are severe — flag any evidence of deletion immediately.
• UK / DIFC / ADGM: Disclosure obligations under CPR Part 31 (UK) or DIFC/ADGM procedural rules. Standard disclosure = documents relied on + adverse documents. Legal professional privilege applies (common-law standard).
• International Arbitration (IBA Rules): Document production is narrower than US discovery; only specifically identified documents or categories. Proportionality is the governing standard. Tagging for relevance and materiality is sufficient; exhaustive production is not expected.
• UAE onshore / KSA: Document production is not automatic; courts request specific documents through the proceedings. First-pass tagging is most useful for internal organization and preparing documents for court submission, not open-ended production.

Limits

• AI-based privilege detection is a triage tool; final privilege determinations must be made by a licensed attorney.
• OCR quality on older or poor-quality scans may reduce detection accuracy — flag low-confidence OCR documents for manual review.
• Multilingual documents (Arabic-English) may require dedicated Arabic-NLP processing for accurate scoring.

Related Skills

• [[pa-workflow-litigation-privilege-log-drafting]]
• [[pa-workflow-litigation-witness-contradiction-finder]]
• [[pa-workflow-litigation-deposition-binder-builder]]
• [[pa-workflow-litigation-transcript-search-q-and-a-indexing]]