Workplace Investigations

Indirectly involved employees may be interviewed as witnesses in the context of the investigation, as the employee has a duty of loyalty towards the employer originating from the employment relationship. However, they cannot be forced to do so (in contrast with criminal procedures). Any harmful act that could be considered retaliation against witnesses in the context of violence or harassment or whistleblowing investigation is prohibited. In addition, the identity of any employees as witnesses is also covered by the principle of confidentiality.  

Due to the employee's duty of loyalty towards the employer and the employer's right to give instructions to its employees, employees generally must take part in an ongoing investigation and comply with any summons for questioning if the employer demands this (article 321d, Swiss Code of Obligations). If the employees refuse to participate, they generally are in breach of their statutory duties, which may lead to measures such as a termination of employment.

The question of whether employees may refuse to testify if they would have to incriminate themselves is disputed in legal doctrine.[1] However, according to legal doctrine, a right to refuse to testify exists if criminal conduct regarding the questioned employee or a relative (article 168 et seq, Swiss Criminal Procedure Code) is involved, and it cannot be ruled out that the investigation documentation may later end up with the prosecuting authorities (ie, where employees have a right to refuse to testify in criminal proceedings, they cannot be forced to incriminate themselves by answering questions in an internal investigation).[2]

As a first step, the employer should ask for the employee’s permission to access their possessions and files. Employment contracts and internal labour regulations may include provisions regarding an employer’s access to employees’ documents created and kept for business purposes or related to business activity.

The basic rule is that the employer may not search private data during internal investigations.

If there is a strong suspicion of criminal conduct on the part of the employee and a sufficiently strong justification exists, a search of private data may be justified.[1] The factual connection with the employment relationship is given, for example, in the case of a criminal act committed during working hours or using workplace infrastructure.[2]

The employer has an obligation, towards the alleged victim but also the alleged perpetrator, to carefully investigate the report and any existing evidence before making decisions. The employee under investigation must be informed about the outcome of the procedure and any measures adopted in this regard. The respective decision must have due justification.

Workplace investigations often result in an investigation report that is intended to serve as the basis for any measures to be taken by the company's decisionmakers.

The employee's right to information based on article 8, Swiss Federal Act on Data Protection also covers the investigation report, provided that the report and the data contained therein relate to the employee.[1] In principle, the employee concerned is entitled to receive a written copy of the entire investigation report free of charge (article 8 paragraph 5, Swiss Federal Act on Data Protection and article 1 et seq, Ordinance to the Federal Act on Data Protection). Redactions may be made where the interests of the company or third parties so require, but they are the exception and must be kept to a minimum.[2]