Legal Professional Privilege

Executive Summary

Legal professional privilege (LPP) is one of the most powerful protections available to any business facing a dispute or regulatory investigation. It shields your internal legal analysis, expert work product and strategy from disclosure - but only if it has been properly generated and maintained.

This guide explains what LPP is, how it operates under English law, what equivalent protection is available in the UAE, and how to structure your legal arrangements to achieve the maximum possible protection even where your engagement is governed by UAE law.

Key Action Points

1. Appoint a qualified lawyer as your in-house legal adviser - not a consultant or commercial manager.
2. Define who within your organisation is the client for privilege purposes.
3. Keep legal advice strictly separate from commercial input in all written communications.
4. Instruct technical experts through your legal function, not directly through your commercial team.
5. If operating in the UAE, ring-fence your legal advice engagement under English law or DIFC law.
6. Include express privilege provisions in your arbitration clause.
7. Conduct a privilege audit before any disclosure exercise, data room or regulatory inquiry.
8. Never make a strategic disclosure of selected privileged documents without legal advice.

1. What Is Legal Professional Privilege?

LPP is the rule that protects certain categories of document from disclosure obligations. There are two distinct types:

• Legal Advice Privilege (LAP): protects confidential communications between a qualified lawyer and their client, made for the purpose of giving or receiving legal advice.¹
• Litigation Privilege: once litigation or arbitration is reasonably in contemplation, communications with third parties prepared for the dominant purpose of those proceedings also attract privilege.²

Privilege is a right that belongs to the client. It must be actively claimed and, once lost through waiver, generally cannot be recovered.

2. LPP Under English Law

2.1 How Legal Advice Privilege Is Generated

Three conditions must be met: the communication must be confidential; it must be made for the purpose of giving or receiving legal advice;³ and the person giving the advice must be a qualified lawyer acting in a legal capacity.⁴ A 2026 clarification from the English Commercial Court confirmed that internal documents prepared for the dominant purpose of obtaining legal advice can also attract privilege, even where no lawyer is the author.⁵

2.2 The Dual-Hat Problem

Where communications serve both legal and commercial purposes, the question is whether the dominant purpose was legal advice.⁶ Documents generated in a commercial role will not attract LAP.⁷ Board papers and management reports which bundle legal commentary with operational content are vulnerable.⁸ Only those authorised to seek and receive legal advice are the client for privilege purposes.⁹

2.3 Litigation Privilege in Construction Disputes

Litigation privilege attaches when litigation or arbitration becomes a real and serious prospect.¹⁰ The Court of Appeal has confirmed it can apply to internal investigation documents even before formal proceedings are commenced.¹¹ All expert instruction should be routed through your legal function.¹²

2.4 Waiver: How Privilege Is Lost

• Selective disclosure: disclosing some privileged documents while withholding others can waive privilege over the entire category.¹³
• Reliance in pleadings: where a party relies on legal advice as part of its case, privilege in that advice is waived.¹⁴
• Data rooms: including privileged documents without privilege review can constitute waiver, even where an NDA is in place.¹⁵
• Onward circulation: forwarding legal advice beyond the defined client group.

2.5 Without Prejudice Communications

Without prejudice privilege is separate from LPP and frequently confused with it.¹⁶ It protects communications made in a genuine attempt to settle a dispute. The protection is not created by labelling a document Without Prejudice.

3. LPP - or Its Equivalent - Under UAE Law

3.1 The Onshore Position: No Common Law Privilege

Onshore UAE does not recognise LPP as understood in English law. The UAE Advocacy Law (Article 42) and Code of Ethics for Advocates (Article 3C) impose a duty of confidentiality on the lawyer¹⁷ - a materially different protection. English LPP is the client right to withhold a document. UAE confidentiality is the lawyer professional duty not to disclose.¹⁸

3.2 DIFC and ADGM: A Materially Better Position

Both recognise legal professional privilege under their own common law procedural regimes, closely aligned with English law.¹⁹ For businesses with DIFC or ADGM contracts or arbitration, English LPP is fully available.

3.3 International Arbitration: Where Privilege Matters Most

The IBA Rules on the Taking of Evidence expressly protect privileged documents: tribunals must exclude from any production order documents protected by privilege under applicable law.²⁰ Privilege is determined by reference to the law governing the document creation, not the seat of arbitration.²¹

3.4 Common Interest Privilege in UAE Joint Ventures

Under UAE law, co-claimants must agree to common interest privilege in writing.²² Sharing privileged material with a non-co-claimant may constitute implicit waiver.

4. Maximising Protection Where Your Engagement Is Governed by UAE Law

4.1 Ring-Fence the Legal Advice Engagement Under English Law

The fractional legal adviser is engaged under a standalone legal services retainer, governed by English law. All legal advice is issued under that retainer, and privilege can be asserted in any international arbitration on that basis.

4.2 Use a DIFC or ADGM Entity for the Legal Engagement

Engaging your legal adviser through a DIFC or ADGM entity means the engagement is governed by DIFC or ADGM law¹⁹ - communications with a DIFC-admitted lawyer attract full common law LPP.

4.3 Strengthen the Arbitration Clause

Specify English law as the substantive law. Adopt the IBA Rules on the Taking of Evidence.²⁰ Include an express provision that privilege shall be determined by reference to English law. Specify ICC, LCIA or DIAC as the institutional rules.

4.4 Contractual Confidentiality as a Baseline

A robust confidentiality clause provides a contractual basis for resisting disclosure in arbitral proceedings.²³ Not equivalent to LPP but in international arbitration it has real effect.

4.5 The Recommended Structure

• Main commercial arrangement under UAE law as required.
• Separate legal services retainer, governed by English law.
• Arbitration clause with English substantive law, IBA Rules, and express privilege provisions.
• All legal advice issued under the English-law retainer, separately documented and controlled.
• Common interest privilege agreements in writing with JV partners or lenders.²²

Conclusion

LPP is a strategic asset - not a technicality. The ability to analyse your position candidly, instruct experts confidentially and develop strategy without exposure to your counterparty or tribunal can be decisive. That asset must be created and maintained deliberately.

A fractional in-house appointment from C&IDS provides the senior construction law expertise to build and manage that privilege framework from day one.

This article is published for general information purposes only. It does not constitute legal advice. C&IDS is a UK limited company (No. 11789861). Steven Hunt is a Solicitor of England and Wales.