How to respond to a tribunal disclosure request

Disclosure is one of the most important stages of an employment tribunal case. Both parties are required to disclose documents that are relevant to the issues in dispute. Getting disclosure right matters: missing key documents can damage your case, while badly handled disclosure can lead to costs orders or worse.

This guide explains how disclosure in employment tribunals works, what counts as relevant, how to respond to a disclosure request and what to do if there is a dispute.

The disclosure framework

Disclosure in employment tribunals is governed by the Employment Tribunals Rules of Procedure. The key principles are:

• Parties must disclose documents that are relevant to the issues
• Disclosure should be proportionate to the case
• The tribunal can order specific disclosure where there is a dispute
• Failure to comply with disclosure orders can lead to costs orders or other sanctions

What is a document?

The definition is broad. It includes:

• Letters and emails
• Memoranda and internal notes
• Reports and minutes
• WhatsApp, Teams and other messaging app conversations
• Text messages
• Recordings (audio and video)
• Photographs
• Spreadsheets and databases
• Social media posts
• HR records
• Performance records
• Pay records
• Medical records

Anything that records information in any form is potentially a document for disclosure purposes.

What is relevant?

Relevance is judged against the issues in the case as defined in the claim form, the response and any list of issues. A document is relevant if it:

• Tends to support a party's case
• Tends to undermine a party's case
• Provides background to the issues
• Helps the tribunal understand the context

The duty to disclose applies regardless of whether the document helps or hurts your case. Hiding documents that go against you is a serious breach.

The disclosure process

The first step

Most tribunal directions require the parties to exchange lists of documents and provide copies of relevant documents at the same time. This is typically scheduled around 4 to 6 weeks before the hearing, though exact timing depends on the directions made.

The list

The list of documents identifies what each party considers relevant. It is not just a list of the documents you intend to rely on; it includes all relevant documents in your control, whether they help you or hurt you.

The exchange

Lists and copies are usually exchanged simultaneously. Each party sends their list to the other and provides copies of all the documents on the list (unless the documents are already in the other side's possession).

The bundle

After exchange, the parties usually agree a bundle for the hearing. The bundle contains the documents both sides agree should be before the tribunal.

How to identify relevant documents

Review the issues

Start with the list of issues (or, if no list, the claim form and response). Identify the specific factual matters in dispute.

Search systematically

For each issue, identify where relevant documents might be found:

• HR files
• Personnel records
• Email accounts of relevant people
• WhatsApp or messaging conversations
• Hard copy files
• Shared drives and document management systems
• Notebooks and personal documents

Be thorough

Search broadly. It is better to identify a document and decide whether to disclose it than to miss it entirely.

Document the search

Keep records of where you searched and what you found. If a disclosure dispute arises, this evidence will matter.

Responding to a specific disclosure request

Sometimes one party asks specifically for particular categories of documents. The request will usually identify:

• The category of documents
• The relevant time period
• The relevance to the issues

You should respond by:

• Considering whether the request is reasonable
• Searching for the documents requested
• Providing what you have
• Explaining what you do not have and why
• Identifying any objections to disclosure

Grounds for objecting to disclosure

Irrelevance

The documents are not relevant to the issues in the case.

Disproportionality

The cost and burden of disclosure outweigh the likely value of the documents to the case.

Confidentiality

The documents are confidential. Note: confidentiality alone is not usually a ground to withhold disclosure, but it may justify redactions or specific protections.

Legal professional privilege

The documents are protected by legal advice privilege or litigation privilege. These are strict protections and the documents do not need to be disclosed.

Without prejudice

Documents marked "without prejudice" relating to settlement negotiations are usually protected from disclosure.

Privilege

Two main privileges apply:

Legal advice privilege

Communications between a lawyer and their client, made for the purpose of giving or receiving legal advice. The privilege applies to all such communications regardless of whether litigation is contemplated.

Litigation privilege

Communications between a party (or their lawyer) and any third party, made for the dominant purpose of litigation that is reasonably in prospect or has commenced. This covers, for example, witness statements obtained for litigation.

Privileged documents do not have to be disclosed. They are listed in a privileged section of the disclosure list, with enough detail for the other party to identify them but without revealing the content.

If you discover damaging documents

The duty of disclosure applies to documents whether they help or hurt your case. If you discover documents that damage your case:

• They must usually be disclosed
• Hiding them is a serious breach of duty
• If they are discovered later, the consequences are usually worse than disclosing them voluntarily

Where damaging documents exist, your strategy needs to account for them. The best approach is usually to disclose them, address them head-on in your witness statement, and explain the context.

Specific disclosure applications

If you believe the other side has not disclosed everything, you can apply for specific disclosure. The application:

• Identifies the categories of documents sought
• Explains why they are relevant
• Sets out why you believe the documents exist
• Asks the tribunal to order disclosure

The tribunal will consider whether the documents exist, whether they are relevant and whether disclosure is proportionate. Specific disclosure orders are made where the criteria are met.

Common disclosure disputes

Refusal to disclose specific categories

One side refuses to disclose documents the other believes are relevant. This often goes to the tribunal for a specific disclosure order.

Inadequate searches

One side has not searched all the locations where relevant documents might exist.

Late disclosure

Documents are disclosed close to the hearing. The tribunal may exclude late-disclosed documents or allow more time for the other side to respond.

Privilege disputes

Where one side claims privilege over documents the other side believes are not actually privileged.

Redactions

Documents are disclosed but with parts redacted. The question is whether the redactions are justified.

Electronic disclosure

Most modern tribunal cases involve substantial electronic disclosure. The same principles apply, but the technical issues are different:

• Search terms for email searches
• Date ranges
• Custodians (whose accounts to search)
• Formats for disclosure (native files, PDFs, hard copies)
• Deduplication

For larger cases, agreement on search parameters between the parties is usually needed.

Common mistakes

Late disclosure

Leaving disclosure to the last minute usually means missing documents. Start early.

Incomplete searches

Failing to search WhatsApp, Teams, personal email accounts or other locations where relevant material may be found.

Filtering for what helps your case

Only disclosing favourable documents and withholding unfavourable ones. This is a serious breach and often discovered.

Claiming privilege incorrectly

Claiming privilege over documents that are not actually privileged risks the claim being challenged and lost.

Over-redaction

Redacting everything that might be sensitive. Tribunals look unfavourably on excessive redaction.

Not engaging with the other side's requests

Ignoring or refusing reasonable disclosure requests increases the likelihood of a specific disclosure order against you.

Sanctions for non-compliance

The tribunal can impose sanctions for failures of disclosure, including:

• Specific disclosure orders
• Costs orders
• Striking out a claim or response
• Drawing adverse inferences from missing documents

The most serious sanctions are reserved for deliberate breaches.

When to take legal advice

Disclosure can be a strategic minefield. The decisions about what to search, what to disclose and what to claim privilege over can significantly affect the case. Taking specialist advice on disclosure strategy, particularly in complex cases, is usually worthwhile.

A direct access barrister with employment law experience can advise on disclosure strategy, draft disclosure-related applications and represent you at any tribunal hearing about disclosure issues.

Talk to a specialist barrister about your matter

If the issues in this guide apply to your situation, our team can match you with a barrister who works on cases like yours every week. The enquiry is free and you will receive a clear fixed-fee quote before any work begins. Start your enquiry here.