Called to an investigation meeting? Learn what it is, your rights, and how to prepare. Practical guide with step-by-step advice from National Employees Union.
An invitation to an investigation meeting triggers anxiety. The letter is formal. The language is cautious. And the purpose is not always explained clearly. But an investigation meeting is not a disciplinary hearing — it sits earlier in the process, before any decision about formal action has been made. Understanding the difference changes how you approach it. This guide explains what an investigation meeting involves, what your employer should and should not do, and how to protect yourself from the start.
Contents
- What is an investigation meeting?
- Investigation meeting vs disciplinary hearing
- Your rights
- How to prepare
- What happens during the meeting
- After the meeting: what comes next?
- FAQs
- How National Employees Union can help
What is an investigation meeting?
An investigation meeting is a fact-finding exercise. Your employer is gathering information about an incident, complaint, or concern. The meeting is part of the evidence-gathering stage — the stage that should happen before any formal disciplinary hearing is convened.
The purpose is to establish what happened. Who was involved. What the circumstances were. The investigation meeting gives you the opportunity to provide your account before your employer decides whether formal action is warranted.
The ACAS Code of Practice requires employers to carry out a reasonable investigation before taking disciplinary action. Skipping this step — or treating it as a formality — can render any subsequent decision procedurally unfair.
Investigation meeting vs disciplinary hearing
The distinction matters because the two serve different purposes and carry different consequences.
| Investigation meeting | Disciplinary hearing | |
| Purpose | Gather facts | Make a decision |
| Outcome | No decision is made at this stage | A sanction can be imposed |
| Right to be accompanied | No statutory right (but may be allowed) | Statutory right under s.10 ERA 1999 |
| Who leads | An investigating officer | A disciplinary panel or manager |
| Formality | Should be exploratory, not adversarial | Formal — evidence presented, response heard |
The distinction breaks down when an employer uses an investigation meeting to reach conclusions. If the meeting starts to feel like a hearing — if you are being pressed for admissions, confronted with evidence, or told the outcome will depend on your answers — it has crossed the line. You can ask for the meeting to be paused and rescheduled as a formal disciplinary, with full procedural protections.
If the case moves forward, the next stage is the hearing itself, covered in your rights at a disciplinary hearing.
Your rights
Your employer may refuse a companion at this stage, so read when the right to be accompanied applies before you ask.
Right to be informed
Your employer should tell you what the meeting is about before you attend. The invitation should identify the issue being investigated, confirm that it is an investigation meeting (not a disciplinary hearing), state the date, time, and location, and name the investigating officer.
A letter that says “come to a meeting” without explaining the subject does not give you a fair opportunity to prepare. If the invitation is vague, write back and ask for clarification.
Right to be accompanied
There is no statutory right to a companion at an investigation meeting. The law only guarantees accompaniment at formal disciplinary and grievance hearings. However, many employers allow a trade union representative or colleague to attend, and the ACAS guide recommends it as good practice.
Ask. If your employer refuses, ask for the refusal in writing. If the meeting then crosses into disciplinary territory, the absence of a companion becomes a procedural issue your employer will have to answer for.
Right to a fair and open process
The meeting should be conducted fairly. The investigating officer should ask open questions, not leading ones. They should listen to your account, not challenge it as if cross-examining. They should take notes and offer you a copy. They should not reach conclusions during the meeting itself.
How to prepare
1. Read the invitation carefully
Identify what is being investigated. If the invitation names a specific incident, gather everything you know about it — dates, communications, witnesses. If the invitation is vague, request more detail before attending.
2. Write down your account
Before the meeting, draft a chronological account of events. Write down what happened, when, who was present, and what was said. Having this written down prevents you from forgetting details under pressure.
3. Gather evidence
Collect any documents that support your account — emails, messages, policies, rotas, records. If the relevant documents are on work systems and you have been suspended, request access in writing.
4. Seek representation
Contact your trade union. Even if your employer does not allow a companion in the meeting, your representative can help you prepare your account, advise on what to say and what to avoid, and be ready to accompany you if the process moves to a formal hearing.
5. Know what to expect
The meeting is an opportunity to provide your version of events. You are not on trial. You do not need to answer every question immediately. If you need time to think, say so. If a question is unclear, ask for it to be rephrased.
What happens during the meeting
The investigating officer will typically explain the purpose of the meeting, describe the issue under investigation, ask you to give your account of events, ask follow-up questions to clarify details, and take notes throughout.
What to do
- Tell the truth. An honest, clear account is the strongest position you can take.
- Be specific. “I was in the break room at 2pm with Sarah and Tom” is stronger than “I was somewhere else.”
- Refer to evidence. If you have emails or records that support your account, mention them and offer to provide copies.
- Ask for the notes. At the end of the meeting, ask for a copy of the notes and the right to amend any inaccuracies before they are finalised.
What to avoid
- Do not speculate. If you do not know something, say you do not know. Guessing can create contradictions.
- Do not admit to things you are not sure about. Pressure to agree with the investigating officer’s framing is common. If the framing does not match your recollection, say so.
- Do not discuss the investigation with colleagues who may be witnesses. This could be perceived as interference and used against you.
After the meeting: what comes next?
The investigating officer will compile their findings into a report. That report will recommend one of three outcomes:
- No further action — the investigation found no case to answer. You should receive written confirmation.
- Informal action — the matter is addressed through a conversation, additional training, or mediation. No formal sanction.
- Formal disciplinary action — the investigation found enough evidence to proceed to a disciplinary hearing. You will receive a written invitation with the allegations, the evidence, and your right to be accompanied.
If the investigation leads to a hearing, everything you said in the investigation meeting can be used. This is why preparation matters. The account you give at the investigation stage forms the foundation of your case going forward.
Some employers suspend while they investigate, and suspension has rules your employer must follow.
Where the allegation is serious, check whether it really counts as gross misconduct.
Your employer has to run the process properly from the start, so read what your employer must do in an investigation.
FAQs
Can I refuse to attend an investigation meeting?
Refusing to attend is generally unwise. Your employer can proceed without your account, which means only their version of events is on record. If you have a genuine reason for not attending (illness, short notice), request a postponement in writing. Most employers will accommodate a reasonable request.
Can I be disciplined based solely on an investigation meeting?
No. An investigation meeting is a fact-finding exercise. Your employer must hold a separate disciplinary hearing before imposing any sanction. If your employer tries to announce a disciplinary outcome at the end of an investigation meeting, challenge it — the process has skipped a required step.
Can I record the meeting?
There is no legal prohibition on recording. However, recording without consent can damage trust and may breach your employer’s policies. If you want to record, ask for permission. If permission is refused, take detailed notes instead — or ask your companion to do so. A record of what was said, however it is made, protects you.
What if I am investigated for something a colleague reported?
You are entitled to know the nature of the allegation but not necessarily the identity of the person who reported it. If the allegation reaches a formal hearing, you may be entitled to challenge the evidence — including knowing who made the complaint and testing their account. At the investigation stage, focus on providing your own accurate account.
How National Employees Union can help
An investigation meeting is the first stage of a process that can lead to formal disciplinary action, warnings, or dismissal. What you say at this stage sets the direction for everything that follows.
National Employees Union members get:
- Pre-meeting preparation — reviewing the invitation, identifying the key issues, and planning your account
- Representation at the meeting where the employer allows it
- Advice on what to say and what to avoid — practical guidance tailored to your specific situation
- Monitoring the process — ensuring the investigation is fair, proportionate, and conducted within a reasonable timeframe
- Ongoing support if the investigation leads to a disciplinary hearing or suspension
Early advice shapes the outcome. Contact us as soon as you receive the invitation.
Join the National Employees Union
Membership from £15/month.
Written by the National Employees Union team. We support employees through workplace investigations across the UK. This guide is reviewed regularly and was last updated in August 2026. For advice on your specific situation, contact us.
