The High Court has expanded legal advice privilege to cover a broader range of internal communications, a ruling that directly affects how in-house legal, comms and compliance teams handle and document internal discussions.

The judgment, reported by law firm Fieldfisher, widens the circumstances in which internal communications can be shielded from disclosure. For practitioners, that means more internal exchanges may qualify for protection — but also that the boundaries of what counts as privileged material have shifted under a live court decision rather than statute.

What does the ruling change?

Legal advice privilege traditionally attaches to confidential communications between a lawyer and a client, created for the purpose of giving or receiving legal advice. In-house settings complicate that picture: employees who are not lawyers, and colleagues in functions such as communications, frequently contribute to exchanges that later matter in litigation or regulatory scrutiny.

The High Court's move expands the category of internal communications that can attract privilege. That has immediate operational consequences:

• Internal messages previously treated as disclosable may now fall inside the privilege boundary.
• In-house teams advising on sensitive matters have stronger grounds to withhold documents.
• Opponents in litigation will test the ruling, so its practical limits remain unsettled.

Why should comms teams care?

Communications professionals sit inside many of the chains of internal correspondence that companies later seek to protect — crisis responses, regulatory preparedness, and reputational risk assessments. Where those exchanges involve legal advice, privilege questions follow.

A broader privilege doctrine gives companies a stronger shield when internal deliberations surface in disputes. It also raises the stakes on how comms staff draft internal messages: wording written for legal protection can fail if courts later re-draw the line.

What happens next?

Fieldfisher's analysis signals that the decision will shape disclosure practice going forward, though any High Court first-instance ruling can be revisited — by appeal, by later cases, or by parties pushing at its edges.

For now, the operative takeaway for practitioners is simple: internal communications that previously sat outside legal advice privilege may now be protected, and teams handling sensitive internal discussions should review their documentation practices against the new position.

Note: This report is based on the headline summary of the Fieldfisher analysis. Practitioners should consult the full judgment and the firm's briefing before acting on the ruling.