Out-Law Guide 12 min. read

Legal professional privilege in the UK

If a document is privileged, the basic position is it can be withheld from third parties.

There are two main types of privilege:

  • Legal advice privilege – this protects confidential communications, and evidence of those communications, between a lawyer and their client, but not communications with third parties, provided that the communications are for the dominant purpose of seeking and receiving legal advice in a relevant legal context.
  • Litigation privilege – this protects confidential communications, and evidence of those communications, between a lawyer and their client and a third party, or between a client and a third party, created for the sole or dominant purpose of obtaining information or advice in connection with the conduct of existing or reasonably contemplated litigation, including avoiding or settling, as well as defending or resisting, that litigation.

Subject to certain limited exceptions, privilege is an absolute right, which belongs to the client. If a document is privileged, the basic position is it can be withheld from third parties.

There are practical steps that companies can take to maximise the protection of confidential, legal communications by privilege as set out in the laws of England and Wales, and similarly in Northern Ireland. In Scotland, whilst legal professional privilege has its roots in the concept of confidentiality of communications, courts north of the border are increasingly taking a similar stance to those in England and Wales in this area, and more recently have tended to adopt similar nomenclature, referring to legal professional privilege rather than the more historic confidentiality of communications.

Legal advice privilege

Who is the lawyer?

Privilege applies to advice given by external lawyers and also by in-house lawyers, provided that they act in their capacity as lawyer and not in an executive or compliance capacity and are qualified to practise under the rules of the regulator, which in England and Wales means the Solicitors Regulation Authority (SRA) or the Bar Council. For solicitors, this generally means holding a current practising certificate.

Privilege extends to employees such as legal executives, trainee solicitors and paralegals provided they are supervised by qualified lawyers.

If the dominant purpose of a communication is to obtain commercial input rather than legal advice, even if legal advice is also being sought, it may not be privileged

Privilege will also extend to the advice given by foreign lawyers, provided they are acting in their professional capacity in connection with the provision of legal advice. It is not necessary or relevant to consider the training and experience of an individual foreign lawyer in order for legal advice privilege to apply - legal privilege should apply to anyone who acts as a lawyer in a foreign jurisdiction.

There is an important exception: in the context of EU Commission competition investigations, and potentially certain other types of EU administrative and enforcement proceedings, only communications involving external, not in-house, lawyers entitled to practise in an EU or EEA member state can attract EU legal professional privilege.

Recent Law Society guidance suggests that, in the absence of an agreement to the contrary, following the end of the Brexit transition period, UK lawyers who have not been admitted to practise as EEA lawyers will be treated as third country lawyers. Third country lawyers practising in the EU have been held to be not covered by EU legal professional privilege.

Legal advice privilege does not apply to advice given by other professionals, such as accountants, with the result that any legal advice given by them may be disclosable.

Who is the client?

For legal advice privilege to apply it is important to establish who the client is. The current law is that the client will only include those individuals who are authorised, expressly or impliedly, to seek and obtain legal advice in relation to the particular matter under consideration either from in-house or external lawyers. The definition of the client does not necessarily extend to everyone within the organisation or even to the whole department or division seeking legal advice. Note that communications between a lawyer and employees outside the designated client team or between the client team and employees outside the team will generally not be privileged, and sending privileged documents outside this team can result in privilege being lost.

It should also be noted that communications within the client team may not be privileged if they are not for the purpose of seeking and receiving legal advice. For example, communications between the client team commenting on the merits of a particular matter may not be privileged.

What is covered?

Legal advice privilege is not confined to advice on the law, but also covers ‘advice as to what should prudently and sensibly be done in the relevant legal context.’ This will cover presentational, commercial or strategic advice, provided that it relates to a client’s legal rights, liabilities, obligations and remedies. It will not apply to advice of a purely strategic or commercial nature which is not provided in a ‘relevant legal context’. Equally, it will not apply to the "fruits" of the legal advice, for example any agreement or conveyance drawn up. Lawyers’ working papers are privileged if, and only if, they would betray the tenor of, or give a clue as to, the legal advice.

Instructions or requests to lawyers seeking legal advice are also covered, as may be other communications in the chain of correspondence between client and lawyer for the purpose of obtaining that advice. However, 'raw materials' such as factual summaries or draft letters which are not produced for the dominant purpose of seeking legal advice will not be covered, even if they are subsequently passed to lawyers for advice.


The giving or seeking of legal advice must be the dominant purpose, not just a purpose, of a communication in order for it to attract legal advice privilege. This is a particular issue for in-house lawyers, who may have a dual role within the business in that they perform both legal and commercial functions, or may be amongst the recipients of a communication which has both legal and commercial aspects. If the dominant purpose of a communication is to obtain commercial input rather than legal advice, even if legal advice is also being sought, it may not be privileged.

It is important to note that merely copying an in-house lawyer into a communication which is not otherwise privileged will not cloak it in privilege.

Litigation Privilege

What does ‘litigation’ mean?

The contemplated proceedings must be adversarial, not inquisitorial or investigative. This excludes, for example, internal grievance and disciplinary proceedings. It also excludes purely fact-finding inquiries and investigations.

The proceedings must also be in progress, pending or ‘reasonably in prospect’, meaning they are more than a mere possibility. It is not sufficient that there is a distinct possibility that sooner or later someone might make a claim, nor is a general apprehension of future litigation enough.


The documents must be created for the dominant purpose of obtaining information or advice in connection with the conduct of existing or reasonably contemplated litigation. Documents which fall outside this, for example internal board discussions of a purely strategic nature which do not contain such information or advice or reveal the tenor of it, will not be covered by litigation privilege.

Often documents are created for more than one purpose. For example, a company may commission an investigatory report looking into the cause of an accident or how a fraud occurred, with a view to improving procedures and avoiding any repeat, but at the same time anticipating that litigation will be likely and that such a report is necessary for this purpose too. However, if the report is not prepared for the dominant purpose of litigation, litigation privilege will not apply.

Sharing privileged documents

The law recognises the need for some sharing of privileged material within an organisation. It is not only a document from a lawyer containing legal advice which may be privileged, but also the client’s own written record of advice and communications passing on, considering or applying that advice internally, insofar as they reveal the advice.

It is also possible in certain circumstances to share privileged material confidentially with outside parties which have a common interest in it, such as other group companies or insurers, and even sometimes with third parties without such a common interest, provided there is a clear, limited purpose for the sharing. In the latter situation the sharing would be on the basis of a limited waiver of privilege. Great care is needed before sharing on either basis - in particular to avoid accusations of 'cherry picking' the information disclosed, which may result in loss of privilege.

Before sharing any privileged information, specialist advice should be sought. Privilege depends on confidentiality, which may be lost through dissemination.


The law regarding the privileged status of documentation produced as part of internal investigations has been the subject of intense debate in light of recent case law in which assertions of privilege over documents generated in the course of such investigations have been subjected to considerable scrutiny.  The application of privilege in this area is likely to be highly fact-specific; courts will look closely at the evidence to consider, for example, whether litigation really was reasonably in prospect at the time of the investigation and whether this was the dominant purpose of the investigation.

The courts should take a realistic, commercial view of the facts of each case. For example, it appears to be recognised that documents may be created for multiple purposes, but that where it is clear that the dominant or overarching purpose was their use in litigation, privilege should apply. The highly fact-specific nature of a claim for litigation privilege in the context of internal investigations, however, makes the outcome of any such claim difficult to predict. Consequently, it is vital that specialist legal advice is sought before any investigation is undertaken if the chances of successfully securing litigation privilege are to be maximised.

Practical steps

Privilege cannot be attached retrospectively. Failure to consider it from day one may mean a claim of privilege cannot be successfully sustained against hostile third parties, including regulators, and the relevant documentation required to be handed over. The following steps help maximise the chances that privilege will apply.

  • If legal advice is required or an internal investigation/review is to be carried out, specialist lawyers should be brought on board as soon as possible, and in any event before any investigation is commenced, to maximise the protection afforded by privilege, and internal protocols set up to minimise the creation of unnecessary non-privileged records, whether written documents or, for example, call recordings.
  • Instructions and requests to external and in-house lawyers and external lawyers' letters of engagement should clearly set out the legal advice sought and give as much detail on any anticipated criminal and civil litigation as possible; this should be reviewed and updated regularly and the same approach taken in other documents created thereafter. It should be made clear that this advice/litigation is the dominant purpose of the instruction or document, as long as this can be supported.
  • Mark all communications in relation to obtaining legal advice or an investigation or review undertaken in contemplation of litigation as ‘Privileged and Confidential – created for the purpose of obtaining legal advice/ in contemplation of litigation’ and instruct colleagues to do the same. Whilst labelling communications in this way is not conclusive, it is helpful and reinforces confidentiality, a key condition if privilege is to be established.
  • Lawyers should direct the process of collecting the information necessary to produce the legal advice and to deal with litigation. Be careful about investigating circumstances or collecting evidence yourself, for example, by interviewing staff or producing reports, unless advised to do so by lawyers.
  • Ensure as far as possible that privileged documents are easily identifiable as such and stored separately from non-privileged documents. Consider the use of project names and password protection to help preserve confidentiality.
  • Emails often result in widespread distribution of information. Review emails before forwarding them on or copying them: if they may contain privileged content, such as legal advice, which you do not wish to share, send a separate email.
  • Circulate privileged documents on a ‘need to know’ basis only. If privileged documents need to be shared, for example between parent and subsidiary, insured and insurer, or with other members of a multi-disciplinary team such as on a corporate transaction, do so under a confidentiality agreement.
  • If it is necessary to discuss privileged material with third parties, put a confidentiality agreement in place and consider discussing the contents at a meeting or on a telecon, rather than disclosing the privileged documents themselves, avoiding documenting the discussions where possible. If there is a need to document the discussions, mark any notes or minutes ‘Privileged & Confidential…’.  Be aware that unless the document produced can be brought within the requirements of legal advice privilege or litigation privilege, it will not be protected and will be disclosable.
  • Be aware – and warn colleagues - of the dangers of making manuscript notes on, summarising, or otherwise commenting on privileged documentation. Such records may not be privileged. Similarly, even if an original advice is privileged, a copy taken of it may not be if it is created for a non-privileged purpose.
  • Where privileged material is discussed internally, such as by the board, and minutes of those discussions have to be created, it is advisable to produce two sets of minutes, one dealing with legal issues and their ramifications and the other with any other matters discussed at the meeting. Where practicable, legal and commercial matters should also be kept separate in written internal communications such as emails. Discussions about the commercial implications of legal advice can be privileged but to maximise the possibility of this ensure the two are linked so that the discussions about commercial issues arising from legal advice or from other privileged information proceed and are recorded by reference to, and in such a way as reveals, the nature of that privileged advice or information.
  • Unless confident that privilege will apply, make all communications as factual as possible. Try not to record views on whether something was done well or badly or on potential weaknesses. If the business requires documents to be created which are unlikely to be privileged, they should be factual and accurate; always consider how they might be deployed in the hands of opposing lawyers if they have to be produced.

Legal advice privilege – additional steps

Before seeking and receiving legal advice from internal or external lawyers or, if an in-house lawyer, when receiving requests for advice, establish who the ‘client’ is, for example:

  • a commercial manager seeking legal advice in respect of a specific contract on a one-to-one basis will usually be the client.
  • in more complex transactions with larger teams, focus on the individuals’ roles, distinguishing between key decision-makers and information gatherers. The former are more likely to be included in the client group. Documents generated by, and communications with, information gatherers will not generally be protected by legal advice privilege.
  • where there is an in-house legal team or lawyer instructing external lawyers, they will usually be the client or at least part of the client team.
  • define and document who 'the client' is, preferably in the engagement letter if external solicitors are instructed, and in internal protocols. The list can be revised as the matter progresses.
  • only 'the client' should deal with lawyers, whether in-house or external. This includes preparing briefing notes, letters of instruction, meeting agendas or minutes for the purposes of seeking and obtaining legal advice; employees who are not part of ‘the client’ should not take on this task.
  • make it clear to other employees that they should not create documents containing information relevant to the seeking of legal advice, or report to the client on the subject in question, without express clearance from the client team or, preferably, the in-house or external lawyers instructed on the matter. If written communications do have to be produced by non-client employees for the purposes of seeking legal advice, ensure that this purpose is recorded and that the content is kept factual.
  • ensure that any advice sought or given on presentational, strategic or commercial issues is given in the context of the client’s legal rights and obligations and not as stand-alone advice.

Litigation privilege – additional steps in a litigious or potentially litigious situation

If an internal investigation or review into an incident, issue or allegation is needed, instruct lawyers to commission this and report for the dominant purpose of anticipated litigation and on the basis that legal advice is needed, giving detail on the anticipated litigation. The report should principally look at the causes of the incident and any possible exposures as a result and then, as subsidiary issues, consider any other matters such as improvements for the future.

If an investigation is carried out with a view to proceedings which are not already afoot, always record the dominant purpose of the investigation and any document produced in the course of it, assuming it is the conduct of those proceedings. This can be done by specifying the proposed claimants or defendants to the anticipated litigation and the expected issues in that litigation; this should be in terms which you would be willing to deploy in support of a claim to privilege.

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