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What legal-AI matter-memory policy should a French law firm use?

Matter memory is not just a chat-retention setting. Before a legal-AI tool keeps facts, extracts or work product from a French matter, the firm should document the purpose, authorised roles, permitted sharing, any restricted-archive stage and the deletion trigger. The GDPR requires purpose-based, limited retention and risk-appropriate safeguards; French professional secrecy also requires lawyers to make people cooperating with them respect confidentiality. This builder produces a policy draft for internal and professional review. It does not configure a product, determine a lawful retention period, or confirm what Julie—or another provider—actually stores.

Checked 27 August 2026 · EUR-Lex, CNIL, CNB, EDPB and ANSSIAlphaDeep legal editorial team

Verify in your contract or admin console. Persistence, deletion, backups, locations, subprocessors and support access are supplier facts to confirm—not assumptions made here.

Matter-state retention and access matrix

This matrix prepares a documented decision. It is neither a legal schedule nor a product setting.

Matter policy—recommended controls and supplier facts to verify.
State / knowledgeScopeRecommended accessDecision to recordEvidence / owner
Active matter · necessary workTimeline, instructions and approved researchMatter team named by roleKeep only for purpose; review on changeOwner + review date
Active matter · high sensitivitySensitive data or privileged strategySmallest named role set; prior reviewNo automatic period; safeguards or no retentionPartner + DPO/security as needed
Closed matter · justified archiveFinal advice or defined obligation evidenceArchive roles separated from live workRecord rationale, review point and restrictionArchive owner + rationale
Closed matter · no continuing needRedundant prompts and superseded draftsNo operational access before controlled deletionDelete by process; verify propagationDeletion owner + evidence
Platform evidenceHistory, DPA, subprocessors and support accessProcurement, privacy and securityKeep for governance, apart from matter substanceSupplier owner + version

Build a policy outline without setting a retention period

Choose categories only. Enter no client name, matter number, fact or document.

Matter type
Sensitivity indicator
Need after active work
Sharing boundary
Review trigger
Supplier evidence

Complete all six categories to display a review outline.

Human validation required

An uncertain answer prevents this outline becoming an operational policy.

Restricted review before retention

Sensitivity or sharing breadth requires human review and supplier evidence.

Archive decision required

A closed matter, dispute or asserted constraint needs a rationale and owner.

Provider evidence gap

Persistence, deletion, access and supplier-chain facts are insufficiently documented.

Active, bounded matter policy

Purpose, roles and trigger are bounded. This is not a configuration or legal approval.

Worked example — not a configuration. Active litigation; highly confidential; named matter team; closure trigger; deletion and backup evidence not verified. Result: Restricted review before retention. Limit roles, schedule closure review and obtain persistence, deletion, backup and support-access evidence.

Why is legal-AI matter memory different from session memory?

A matter policy governs a bounded knowledge record, authorised people and the full lifecycle. A session feature describes continuity within a conversation.

What can count as knowledge retained for one legal matter?

List facts, excerpts, uploads or references, notes, outputs, sources and logs separately. They may not share the same purpose, access boundary or lifecycle.

What purpose should a firm record before keeping matter knowledge?

Record the specific legal-work purpose for which the knowledge is needed. Convenience alone does not justify undifferentiated collection or retention.

Who sets a French law firm’s AI retention period?

The accountable organisation documents a purpose-based decision against applicable legal and professional constraints. This page never calculates a universal number.

When should active use, restricted archive and deletion be separated?

Separate stages where a closed matter still has a justified, controlled archive need. Closure is a human review event; archive is not the automatic default.

Who should be able to access AI matter knowledge?

Use named matter roles and a need-to-know boundary, with an accountable review owner. Firm-wide visibility should not be the unexamined default.

Does professional secrecy by itself permit an AI sharing workflow?

No. Secrecy remains a professional duty, while the provider’s factual role, instructions, safeguards and access require a distinct documented review.

What evidence should a provider supply before matter memory is enabled?

Obtain written facts about persistence, deletion propagation, backups, exports, support and admin access, subprocessors, locations and logs.

How should a firm handle closed matters, disputes and legal holds?

Make closure a documented decision point: justified restricted archive, deletion candidate or evidence of another constraint. Never apply one universal timer.

How can the firm evidence access review and revocation?

Maintain a role register, review date, exception reason and accountable reviewer. Auditable evidence is stronger than a generic security promise.

What changes when someone asks for access or erasure, or an incident occurs?

Map the data across the firm and its processors, then use an escalation route that also protects confidential information belonging to other people.

What does this policy builder produce—and what must humans still approve?

It produces a categorical outline and evidence gaps. The firm, matter owner, DPO or security lead and qualified advisers must validate the actual policy.

Official sources

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Information and governance template, not legal advice. Retention, access, professional secrecy and data-protection duties depend on the matter, the firm’s role, applicable rules and the provider’s documented service. Verify contracts and actual settings; enter no client facts, identifiers or documents here.