A workplace investigation checklist can help employers keep the process focused, fair and properly documented. An investigation needs more than a few questions and a collection of notes. Employers need to establish what happened, consider the available evidence and give the people involved a fair opportunity to explain their side. Getting the process wrong can create further issues and make it harder to justify decisions later.
This checklist covers the main points UK employers should consider before, during and after a workplace investigation. It can be used when dealing with potential misconduct, grievances or other workplace concerns. If you need additional support, My HR Consultancy provides Workplace investigation services covering investigation planning, evidence gathering, report writing and independent investigations.
What Is A Workplace Investigation?
A workplace investigation helps an employer establish the facts surrounding a potential disciplinary, grievance or misconduct issue. It gives the people involved an opportunity to provide information and allows the employer to review the available evidence before deciding whether further action is necessary.
The investigator should approach the matter without assuming that an allegation is true or that a particular outcome is inevitable. Their role is to examine the relevant information, identify what can be established and record the findings clearly.
Workplace Investigation Checklist: Before The Investigation
Before starting the investigation, review the report and decide whether you need a formal investigation. Not every workplace issue requires a full investigation, particularly where an informal conversation could resolve a straightforward concern. More serious allegations or situations where the facts remain unclear are more likely to require a formal process.
- Identify the issue:
What exactly has been reported, and what needs to be established? - Check your procedures:
Does your disciplinary, grievance or other relevant policy require an investigation? - Consider immediate risks:
Do you need to take any temporary steps to protect employees, evidence or the business? - Consider reasonable adjustments:
Does anyone involved require adjustments to take part fairly in the process? - Choose an investigator:
Does the person have the appropriate experience, authority and time to conduct the investigation properly? - Check for conflicts:
Could their involvement create a perceived or actual conflict of interest?
The investigator’s role is to establish the facts, not decide the outcome before the investigation has taken place. For straightforward cases, a suitably trained manager may be able to carry out the work. More serious or sensitive matters may require someone with greater experience or an independent investigator.
Planning The Investigation
A clear plan helps keep an investigation focused. Start by defining the matters you need to examine, then identify the evidence and people who can help answer those questions. This is also the point to consider practical issues such as confidentiality, data protection and any evidence that could become unavailable.
Rather than adding another section to your workplace investigation checklist at this stage, work through the practical questions as part of your investigation plan. What allegations or events fall within the scope? What do you need to establish? Which documents, records, messages or other evidence could be relevant? Who needs to be interviewed, and are there any time-sensitive issues that need attention?
Put the scope in writing before the investigation starts. Clear terms of reference can prevent unrelated issues from becoming part of the investigation and give everyone a better understanding of what is being examined.
Gathering Evidence And Information
The evidence you collect will depend on the circumstances. It could include emails, documents, attendance records, CCTV, computer records, messages, policies or previous correspondence. Keep a record of what you obtain and where it came from so you can refer back to it when reviewing the findings.
Avoid concentrating only on information that supports the original allegation. Evidence that challenges an account can be just as important as evidence that supports it. If you discover a significant new issue during the investigation, consider whether you need to expand the scope and explain that change.
Keep investigation material secure throughout the process and deal promptly with anything that could become unavailable. This might include CCTV footage, electronic records or other time-sensitive information. Maintaining a clear record of the material you considered will also make it easier to explain how you reached your findings.
Speaking To The People Involved
Documents rarely provide the complete picture. Interviews allow the people involved to explain what happened, clarify disputed points and provide information that may not appear elsewhere.
Give reasonable notice and explain the purpose of each meeting. Prepare questions based on the information you already have, but allow people to raise relevant matters you hadn’t anticipated. Open questions can help you understand their account, while follow-up questions can clarify dates, conversations or inconsistencies.
Speak to the relevant people, which may include the person raising the concern, the employee under investigation and witnesses. Give each person an appropriate opportunity to explain or clarify their account, and keep accurate notes of the important points discussed. If an interview raises significant new information, consider whether you need to follow it up before completing the investigation.
Reviewing The Findings
Once you have gathered the information and completed the relevant interviews, review everything against the questions you set at the start. Identify which facts you can establish, where accounts conflict and where the available information remains inconclusive.
If important questions remain unanswered, the investigation may not be finished. Further evidence or another interview could be necessary before you complete the report. Before moving on, return to your workplace investigation checklist and check that you have covered the original scope and dealt with any significant gaps.
An investigation establishes the facts. It doesn’t decide whether an employee is guilty of misconduct or what disciplinary action should follow. The findings should give the appropriate decision-maker a sound factual basis for deciding what happens next.
Writing The Investigation Report
The report should give the person responsible for the next stage an accurate record of what you considered and what you found. Explain the scope, summarise the relevant information, record the interviews carried out and set out your findings.
Keep the language factual and avoid speculation. If the information does not allow you to establish something, say so rather than presenting an assumption as fact. The report should also make clear which matters were outside the scope of the investigation and highlight any significant limitations.
The report should distinguish between allegations, evidence and established facts. Unless this forms part of the investigator’s role, avoid recommending a disciplinary outcome. The purpose of the report is to give the appropriate decision-maker a clear account of the investigation and its findings.
After The Investigation
Completing the investigation does not automatically mean that disciplinary action should follow. The findings may show that there is no case to answer, that an informal resolution is appropriate or that the matter should proceed to a disciplinary or grievance hearing.
Where another stage follows, the person responsible for making that decision should consider the investigation findings and relevant information before deciding what action is appropriate. Keeping the investigation and decision-making stages separate can help maintain confidence in the process.
Once the investigation has finished, keep the records securely and maintain appropriate confidentiality.
Common Workplace Investigation Mistakes
Employers can undermine an investigation by starting with a fixed conclusion, choosing someone with a conflict of interest, overlooking relevant witnesses or dismissing information that challenges the original allegation.
Unnecessary delays can also create difficulties, particularly where evidence becomes harder to obtain or employees are left uncertain about what will happen next. Keep the investigation focused, document important decisions and avoid expanding the scope without good reason.
Employers should also follow their own policies throughout the process. If procedures are outdated or unclear, they can make an already difficult situation harder to manage.
When To Get HR Investigation Support
Many straightforward investigations can be handled internally when an organisation has someone with the appropriate experience and enough independence to conduct the process properly. More complex cases can require additional expertise, particularly where allegations involve bullying, discrimination, gross misconduct or serious disputes between employees.
In these situations, Employee relations support can help you manage the wider case and decide how best to approach the investigation.
Your policies also provide an important foundation. Disciplinary, grievance and other employee relations procedures should reflect how your organisation operates and current employment requirements. Regular HR policy reviews can help identify outdated wording, gaps or inconsistencies before they create problems.
If you need additional support with a complex or sensitive case, our Workplace investigation services cover investigation planning, evidence gathering, report writing and independent investigations.