Workplace Investigations

If an employee complains to his or her superiors about grievances or misconduct in the workplace and is subsequently dismissed, this may constitute an unlawful termination (article 336, Swiss Code of Obligations). However, the prerequisite for this is that the employee behaves in good faith, which is not the case if he or she is (partly) responsible for the grievance.

It is down to the employer’s discretion and subject to the whistleblowing policy (if any) to commence the investigation resulting from a complaint from a whistleblower. Whistleblowers and those who cooperate with an investigation should be protected. Normally the employer would not try to identify the whistleblowers. Also, it is best not to reveal the identity of the witness or the source of information; otherwise, they may feel uncomfortable giving information or raising their concerns next time. Any allegations of retaliation that surface during the investigation should be treated as a new report of possible misconduct that could be subject to additional investigation.

It is up to the employer to determine whether or not to open an investigation after a complaint from a whistleblower. It is very important that the identity of the whistleblower is protected and that the employer also should not reveal the identity of the witness or the source of information, as the sources and witnesses may fear retaliation and feel uncomfortable or hesitant in giving information or raising concerns again.

In addition to the above-mentioned statutory confidentiality obligations, separate non-disclosure agreements can be signed. In an internal investigation, the employee should be expressly instructed to maintain confidentiality.

Non-disclosure agreements can be made between an employer and employees who are involved in an investigation. This may include investigators and witnesses, apart from the employee under investigation. This minimises the risk of information being leaked, which can affect all parties related to the workplace investigation. However, an NDA is not absolute means to prevent the disclosure of confidential information, as the court has the authority to compel disclosure.

Generally, NDAs can be used to keep the facts and substance of a workplace investigation confidential. There are no express prohibitions against such NDAs. However, there are cases set out under Decree No. 13/2023/ND-CP on personal data protection where personal data is allowed or required to be disclosed without the data subject’s consent, in instances that are necessary to serve the public interest or to protect the life and health of the data subject.