Witnesses can give important evidence that might help decide the outcome of a disciplinary or grievance case.
If there are any witnesses with information about the discipline or grievance issue, the person investigating can ask them to write it down in a 'witness statement'.
The person investigating can also have a meeting with a witness to ask them what they know or saw. Someone should take notes during the meeting. At the end of the meeting, the witness should sign the notes and these can also form a witness statement.
Taking a witness statement
A witness statement will usually be a signed copy of the notes from an investigation meeting. A witness should be given a copy of their statement to check it is accurate. Once they have checked the document, they should sign the statement to confirm it is accurate.
The person investigating might decide a witness can give a statement without having a meeting. For example, if the witness:
- is not an employee, for example a customer or client
- only needs to give very simple information
- is ill and cannot come to an investigation meeting
The person investigating should ask the witness to write:
- their name and, where applicable, job title
- the date, place and time of any relevant issues
- what they saw, heard or know
- the reason why they were able to see, hear or know about the issues
- answers to specific questions, where necessary
- the date and time of writing their statement
- their signature
The witness should have reasonable time to give the statement.
Witness statements taken in a meeting
A witness should be allowed to amend their statement but should sign any amendments they make. If an investigator believes the changes contradict what was said at the meeting, they might note this. They could also include both the original statement and the amended statement in the report.
If a witness refuses to sign their statement, an investigator should try to find out the reason and resolve the issue. If they cannot resolve it, an investigator should still include the statement in their report but state that the witness refused to confirm that it was an accurate reflection of the meeting.
Talking to a large number of witnesses
If a large number of people witnessed the same incident, the person investigating should:
- talk to some of the witnesses
- check whether they're broadly saying the same thing
The person investigating does not have to talk to all witnesses, unless either of the following apply:
- they feel they're not getting enough information
- there are significant differences in what the witnesses say
Sharing information and confidentiality
When getting information from a witness, it's a good idea to get their consent to be able to share it if necessary. For example, in case other people working on the investigation need to look at the information.
The employee under a disciplinary investigation, or who has raised a grievance case, should be given a copy of any written evidence including witness statements.
If someone believes they've been named in a report, they have the right to see any parts that:
- have information about them
- depended on information they gave
They should not be allowed to see private information about other people.
The employer should keep investigation reports for a while, in case there are any questions in the future. How long they keep reports might be set out in a workplace policy.
If the report includes people's details, the employer should store it securely and only allow access when necessary. Anyone who has access needs to follow data protection law (UK GDPR).
The report should be securely disposed of once it's no longer needed or is out of date. For example, it could be shredded.
Reluctant witnesses
Some witnesses may be reluctant to provide evidence for an investigation. An investigator should:
- explore the reason a witness is reluctant to give evidence
- provide reassurance
- try to resolve any concerns they have
Where possible, investigators should avoid anonymous witness statements. This is so the person under investigation can fairly question any evidence against them.
Anonymised witness statements should only be used in exceptional circumstances, such as when a witness genuinely fears revenge action. Witnesses should be told that if there are legal proceedings, employers may have to share the names of anonymous witnesses.
Where anonymity is agreed, an interview should be carried out and notes taken as normal. An investigator should remove relevant parts to prevent identification.