Guide · Before the hearing
Investigation and suspension at work, explained
Being sent home pending an investigation is one of the most disorientating things that can happen at work. It is also the stage where the most ground is available and the least is usually taken. This guide explains what an investigation is for, what suspension is and is not, and exactly what to put in writing in the first forty eight hours.
At a glance
What people assume, and what is actually true
Almost every disciplinary case that ends badly was decided in the fortnight before anybody used the word hearing. The investigation is where the allegations take their final shape, where the evidence bundle is assembled, and where the employer forms the view they will spend the rest of the process defending. By the time an invitation letter arrives, most of that is fixed.
The ACAS Code of Practice on disciplinary and grievance procedures requires employers to carry out necessary investigations without unreasonable delay in order to establish the facts. Sometimes that means an investigatory meeting with you. Sometimes it means the employer simply collating evidence for use at a later hearing. Either way, the investigation is a fact-finding exercise, not a trial, and treating it as either extreme causes problems.
Zhan Associates is a specialist workplace defence consultancy. We are not a firm of solicitors and we do not provide reserved legal activities or legal advice. What we provide is forensic case preparation, procedural challenge, and in-room representation as your chosen companion under Section 10 of the Employment Relations Act 1999.
Investigation & Suspension
Suspension
Suspension feels like a punishment because it looks exactly like one. You hand over a laptop and a pass, colleagues watch you leave, and the explanation offered to the rest of the team is usually silence. None of that changes what suspension legally is. The Code treats it as a neutral act, says it should be with pay, says the period should be as brief as possible, and says it should be kept under review. It also says it should be made clear that suspension is not a disciplinary action.
The gap between that description and how suspension is actually administered is where the argument lives. Suspensions that run for months without a single review, that are announced to the wider team in terms implying guilt, or that are imposed reflexively because the allegation sounds serious rather than because removal from the workplace is necessary, all depart from the standard the Code sets. Those departures rarely win a case on their own. They do establish a pattern, and a pattern is what a tribunal weighs when deciding whether the process as a whole was fair.
A supervisor is suspended on a Friday over an allegation of falsifying timesheets. The letter says the suspension is precautionary and will be reviewed. Nine weeks later there has been no review, no investigation meeting, and two emails asking for an update have gone unanswered.
What this is worth. Not a case by itself. But it evidences unreasonable delay, an unreviewed suspension, and a failure to keep the employee informed, all measured against a Code the employer is expected to follow. At the hearing it reframes the question from what the supervisor did to how the employer has conducted itself, and at tribunal it feeds directly into the twenty five per cent adjustment available for unreasonable failure to comply with the Code.
How Zhan Associates helps during suspension
Suspension is dead time only if you let it be. We use it to establish the record: what is actually alleged, what evidence exists, what policy is said to have been breached, and whether the employer is meeting its own timescales. Every unanswered request becomes part of the picture.
- Fast triage. A Rapid Defence Review reads the allegation letter and tells you plainly how serious this is and what to do this week.
- The written record. Structured requests for the allegations, the evidence and the review date, drafted so that a non-answer is as useful to you as an answer.
- Pay and contract check. Whether unpaid suspension has any contractual basis, and what to do immediately if it does not.
Investigation & Suspension
The investigation itself
An investigation has one job: establish the facts well enough to decide whether there is a case to answer. It is not required to prove anything to a criminal standard, and it is not required to be perfect. It is required to be reasonable in the circumstances, and the Code is explicit that what is reasonable takes account of the size and resources of the employer. A national retailer and a six-person workshop are not held to the same investigative depth.
What consistently causes trouble is scope. Investigations that begin with one allegation and quietly acquire three more, that interview the complainant at length and the accused for twenty minutes, or that gather only the material supporting a conclusion already reached, are all vulnerable. So is the investigation that never asks the obvious exculpatory question. You are entitled to have the case against you put properly, and that includes the parts of the evidence that help you.
| Request | Why it matters | If they refuse |
|---|---|---|
| The allegations in specific terms | A vague allegation cannot be answered, and cannot fairly be upheld. Specificity forces the employer to commit to a case. | The vagueness is now documented, and any later particularisation looks like a moving target. |
| The evidence relied on | The Code says it is normally appropriate to provide copies of written evidence, including witness statements, with the notification. | You attend without having seen the case. That is a clear point to make at the hearing and in any appeal. |
| The policy said to be breached | Sanction is anchored to the policy. If the conduct is not in the gross misconduct list, the label is arguable. | Reliance on an unpublished or unwritten standard is markedly harder to defend. |
| Who is investigating and who will decide | In misconduct cases different people should do each, where practicable. | If the answer is one name for both roles in a large employer, that is a departure worth recording early. |
| The suspension review date | Suspension should be as brief as possible and kept under review. | Silence establishes that no review mechanism exists in practice. |
| Relevant CCTV, access logs, rotas or messages | Employers gather what supports the allegation. Material that undermines it usually has to be asked for. | Ask early. Systems overwrite, and a refusal recorded before deletion is worth far more than a complaint afterwards. |
Put every request in a single, short, dated email. One email creates one clean record. Six separate messages create an argument about what was asked and when.
How Zhan Associates helps at the investigation stage
We prepare the account rather than improvise it. That usually means a considered written statement, submitted once we know what is actually alleged and what evidence exists, rather than an unprepared answer given in a room where the questions were written in advance and yours were not.
- A prepared written account. Built from the documents, structured to close the questions the investigator is going to ask.
- Scope control. Objections recorded where new allegations appear without a fresh opportunity to respond.
- Escalation planning. Where this is heading, and whether a Structured Defence Strategy or hearing representation is warranted.
Sources: ACAS Code of Practice on disciplinary and grievance procedures, in force 11 March 2015, paragraphs 4 to 9 and 31. Employment Relations Act 1999, section 10.
Common questions
Investigation and suspension questions people ask
No, and the ACAS Code is explicit that suspension is not a disciplinary action. It is meant to be a neutral holding step where a period away from the workplace is genuinely necessary, for example to protect evidence or other people. In practice it frequently feels like a verdict, and employers who treat it that way create a procedural weakness you can use later.
There is no fixed statutory maximum, but the Code requires suspension to be as brief as possible and to be kept under review. An open-ended suspension that nobody revisits for weeks is a departure from the Code, and it is worth asking in writing for the review date and the reason it is still considered necessary.
Almost always yes. The Code refers to suspension with pay, and unpaid suspension is only lawful where your contract clearly allows it, which is rare. If your pay stops without a contractual basis, that is a separate issue and should be raised immediately rather than saved for the hearing.
No. An investigatory meeting should not by itself result in disciplinary action. Its purpose is to establish the facts, and if there is a case to answer it must then be put to you in writing with enough detail for you to prepare a response before any disciplinary hearing.
There is no statutory right to be accompanied at a formal investigatory meeting, though many employers allow it under their own policy. Check the policy and ask. Where you cannot bring anyone, prepare in advance and keep your own contemporaneous note of what was asked and what you said.
In misconduct cases the Code says different people should carry out the investigation and the disciplinary hearing where that is practicable. In a small organisation it is sometimes unavoidable, and tribunals take the size and resources of the employer into account. In a large one it is a real procedural failure worth putting on the record.
Ask for the allegations in specific terms, the evidence relied on, the policy said to have been breached, the identity of the decision maker, the terms of reference of the investigation, and confirmation of your suspension review date if you are suspended. Put the requests in one short email so the absence of a reply is itself documented.
You can be investigated, but you cannot fairly be disciplined for an allegation that was never put to you. If new matters emerge during the process, they should be put to you in writing with a fresh opportunity to respond. Allegations that appear for the first time in an outcome letter are one of the clearest procedural failures there is.
Usually you should engage, but carefully. Silence is often read as evasion, while an unprepared account given under pressure can fix you to a version you later need to correct. The safer route is a considered written statement once you have seen what is actually alleged and what evidence exists.
A criminal charge or conviction is not in itself a reason for disciplinary action. Your employer has to consider what effect it has on your suitability for the job and your relationship with colleagues and customers. These cases need careful handling because what you say internally can travel, and they are worth taking advice on before you respond.
Next in the process: what happens at a disciplinary hearing, and who you are entitled to bring with you.
Keep reading
Related guides
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What actually happens in the room, what your employer has to do first, and how to prepare in the days you have rather than the days you want.
Read the guide → The allegationGross misconduct allegations
What makes conduct gross rather than serious, why summary dismissal still requires a fair process, and where these cases are most often won.
Read the guide → After the outcomeAppeal hearings
The most misused stage in the whole procedure. How to write grounds that work, what an appeal can cure, and the clock that keeps running while you use it.
Read the guide →Confidential · Free 15-minute consultation
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