Workplace Investigations

Co-workers can spontaneously act as witnesses and provide statements to superiors before, during or after the interviews. Co-workers can also be interviewed as witnesses at the investigator’s request, although they are not under any obligation to answer the questions and they cannot be compelled to do so. The investigators have an absolute obligation of discretion during the investigation and cannot reveal any details of the information gathered.

Certain employees may benefit from whistleblower status, which implies that they may be exempt from potential criminal and civil liability relating to their report or testimony and they are protected from any retaliatory measures from the employer. “Facilitators” who helped the whistleblower and the individuals connected with the whistleblower and risk retaliatory measures by testifying as a witness may also benefit from this status, as of 1 September 2022.

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]

Unrelated matters revealed during the investigation do not necessarily mean that another investigation will be opened. Nevertheless, if reprehensible acts unrelated to the current investigation are revealed, the employer will need to take action and sanction the perpetrator (after checking the facts). Sometimes the only way to check the facts is to carry out another investigation on a separate matter. However, the investigation team may also consider if there is enough connection between the matters to widen the scope of the current internal investigation.

There are no regulations in this regard in the Swiss employment law framework. However, in criminal proceedings, the rules regarding accidental findings apply (eg, article 243, Swiss Criminal Procedure Code for searches and examinations or article 278, Swiss Criminal Procedure Code for surveillance of post and telecommunications). In principle, accidental findings are usable, with the caveat of general prohibitions on the use of evidence.

There is no obligation to share the investigation report. The findings, or a summary of them without revealing any confidential information, may be disclosed, but it is the employer’s responsibility to keep the identity of every person interviewed confidential.

In principle, there is no obligation to disclose the final investigation report. Disclosure obligations may arise based on data protection law vis-à-vis the persons concerned (eg, the accused). Likewise, there is no obligation to disclose other documents, such as the records of interviews. The employee should be fully informed of the final investigation report, if necessary, with certain redactions (see question 22). The right of the employee concerned to information is comprehensive (ie, all investigation files must be disclosed to him).[1] Regarding publication to other bodies outside of criminal proceedings, the employer is bound by its duty of care (article 328, Swiss Code of Obligations) and must protect the employee as far as is possible and reasonable.[2]