Legal department · AI Act

Legal department — AI Act: mastering legal AI

Legal departments are adopting AI tools for contract review, research, and analysis. Within the meaning of the AI Act, these internal uses generally fall under the limited-risk category, with vigilance required around reliability and confidentiality. This guide clarifies the classification and best practices.

DPO / CISO team — Data Comply One Updated on 15 June 2026

In brief

  • Regulation: AI Act.
  • Legal departments deploying AI tools are deployers; the tool's publisher is the provider.
  • Qualify use cases.
  • Verify reliability.
  • Mastering confidentiality.
  • For internal uses of limited risk, the AI Act translates primarily into transparency obligations.

Regulatory deadlines

The key dates of this regulation.

August 2024

Entry into force

In force

February 2025

Ban on prohibited practices

In force

August 2025

General-purpose AI models (GPAI) & governance

In force

August 2026

High-risk system obligations (Annex III)

In force

August 2027

High-risk embedded in products (Annex I)

Upcoming

What does the AI Act cover?

The AI Act reserves the high-risk classification, in the area of justice, for AI intended to assist a judicial authority in researching and interpreting facts and law. Tools used by a private legal department (review, research) most commonly fall under limited risk (transparency).

Best practices in reliability and confidentiality are nonetheless required.

Is the 'Legal Services' sector concerned?

Legal departments deploying AI tools are deployers; the tool's publisher is the provider. Internal research and review use cases do not, in principle, constitute high risk.

The confidentiality of injected file data is the primary point of concern.

Detailed obligations

Qualify use cases

Confirm the limited risk of internal review and research tools.

Verify reliability

Containing the risk of errors and 'hallucinations' through human oversight.

Mastering confidentiality.

Monitor the location and protection of data transmitted to tools.

Ensure transparency

Inform on the use of AI within the organisation.

Sanctions & risks

For internal uses of limited risk, the AI Act translates primarily into transparency obligations. The most concrete legal risk is the leakage of confidential data through a poorly controlled tool.

Application timeline

  • 1Entry into force. 1 August 2024.
  • 2Transparency. Progressively applicable.

Common mistakes in the sector

  • 1Presumed reliability. Trusting outputs without oversight.
  • 2Neglected confidentiality. Injecting file data into an uncontrolled tool.
  • 3Absent transparency. Failing to disclose AI usage.
  • 4Charter missing. Leaving AI usage without an internal framework.

Practical case

A legal department adopts an AI-powered contract review tool. Classified as limited risk, it establishes a charter, mandates human oversight of analyses, restricts the data fed into the system, and verifies the location of the vendor's processing operations.

Compliance roadmap

  1. 1

    Inventory. Inventorying legal AI tools.

  2. 2

    Qualify. Confirm limited risk.

  3. 3

    Supervise. Framing the reliability of outputs.

  4. 4

    Secure. Maintain control over data confidentiality.

  5. 5

    Charter. Establish an AI usage policy.

Frequently asked questions

Not in principle: limited-risk internal use.

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