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  5. Privilege Log

Privilege Log

A privilege log is a document produced in discovery that identifies each document withheld from production on grounds of privilege, describing the document without disclosing privileged content, enabling the opposing party to assess the validity of the privilege claim.

Last reviewed: 2026/05/19

Definition

Why It Matters for Lawyers

How AI Tools Handle It

Frequently Asked Questions

Q1: What information must a privilege log entry include?
Federal court requirements vary, but a typical privilege log entry should include: document date, author(s), recipient(s), document type (email, memo, letter), subject matter description (without revealing privileged content), and the specific privilege claimed (attorney-client, work product, or both). Some courts require additional fields. Check applicable local rules and any court-specific discovery orders.
Q2: Can a party challenge the adequacy of a privilege log?
Yes. Opposing parties can challenge privilege log entries as inadequate, as improperly withheld, or as asserting privilege for documents that are not actually privileged. Challenges typically take the form of a letter to opposing counsel followed by a motion to compel or motion for in-camera review. Courts have ordered in-camera review of challenged documents and, in some cases, ordered privilege waiver where the log was persistently inadequate.
Q3: Is there a volume threshold above which a privilege log is not required?
Some courts and parties negotiate "categorical" privilege logs for very high-volume matters, allowing descriptions of categories of withheld documents rather than item-by-item entries. This requires agreement of the parties or court approval. Absent such an arrangement, FRCP 26(b)(5)(A) applies to each withheld document regardless of volume. --- *Last reviewed: 2026-05-19 by LawyerAI Editorial Team.*

Related Concepts

Capability

Privilege Review

Privilege review is the process of examining documents in an e-discovery collection to identify and withhold materials protected by attorney-client privilege, work product doctrine, or other applicable privileges before production to opposing parties.

Security

Attorney-Client Privilege

Attorney-client privilege is the legal doctrine that protects confidential communications between a lawyer and client made for the purpose of seeking or providing legal advice, shielding those communications from compelled disclosure in legal proceedings.

Legal Practice

Document Production

Document production is the process of delivering to opposing parties in litigation or investigation the set of documents that are responsive to discovery requests, non-privileged, and within the scope of the applicable discovery order or agreement.

Capability

E-Discovery

E-discovery (electronic discovery) is the process of identifying, preserving, collecting, reviewing, and producing electronically stored information in response to litigation, investigations, or regulatory demands.

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Related Reading

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Last reviewed: 2026/05/19. Definitions are written by the LawyerAI Editorial team. We do not accept affiliate commissions; Featured placement is clearly labeled and does not influence editorial content.

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© 2026LawyerAI Editorial

A privilege log is a document produced in discovery that identifies each document withheld from production on grounds of privilege, describing the document without disclosing privileged content, enabling the opposing party to assess the validity of the privilege claim.

Privilege logs are a standard requirement in federal civil discovery under FRCP 26(b)(5)(A), which requires that a party withholding documents on privilege grounds expressly assert the privilege claim and describe the documents in a way that allows other parties to assess the claim without disclosing the protected information. Failing to produce an adequate privilege log, or producing it untimely, can result in privilege waiver.

The practical challenge is significant. In large discovery matters, withheld privilege documents may number in the tens of thousands. Preparing a privilege log entry for each document — identifying the date, author, recipients, document type, and privilege basis — requires substantial work that traditionally fell to litigation support staff and junior associates performing manual, document-by-document review.

An inadequate privilege log — one that uses generic descriptions like "confidential attorney communication" without sufficient specificity — invites challenges from opposing counsel and in-camera review motions. Courts have ordered privilege waiver for persistent log inadequacy.

AI tools have significantly changed the economics and accuracy of privilege log preparation, making what was once a purely manual task far more manageable on large document sets.

AI privilege log generation draws on the same AI features used in privilege review — attorney and entity recognition, legal advice language detection, and metadata analysis — to automatically populate privilege log entries for withheld documents. Relativity AI and Everlaw both include privilege log generation features that draft log descriptions from document metadata and AI-analyzed content.

AI-generated privilege log entries still require attorney review to confirm accuracy. The AI may misidentify the privilege basis, generate an insufficiently specific description, or miss a document that should be withheld. Quality control sampling is necessary before the log is served on opposing counsel.

Harvey AI and similar general legal AI tools can also assist with privilege log preparation by analyzing document batches and generating log descriptions for attorney review and editing — a use case well-suited to AI's ability to process many documents at consistent speed.

Some courts and jurisdictions have specific format requirements for privilege logs that AI tools must be configured to follow. Checking applicable local rules and the discovery protocol for privilege log format requirements before generating the log is essential.