Workplace Investigations

As explained above, investigation materials are not protected by privilege per se. To protect the confidentially of these materials, it is advisable to enter into NDAs with the employees involved in the investigation.

As outlined above, all employees generally have the right to know whether and what personal data is being or has been processed about them (article 8 paragraph 1, Swiss Federal Act on Data Protection; article 328b, Swiss Code of Obligations).

The employer may refuse, restrict or postpone the disclosure or inspection of internal investigation documents if a legal statute so provides, if such action is necessary because of overriding third-party interests (article 9 paragraph 1, Swiss Federal Act on Data Protection) or if the request for information is manifestly unfounded or malicious. Furthermore, a restriction is possible if overriding the self-interests of the responsible company requires such a measure and it also does not disclose the personal data to third parties. The employer or responsible party must justify its decision (article 9 paragraph 5, Swiss Federal Act on Data Protection).[1]

The scope of the disclosure of information must, therefore, be determined by carefully weighing the interests of all parties involved in the internal investigation.

Criminal or regulatory investigations may (and usually do) run in parallel to workplace investigations.

There is no need to stay the internal investigation and, in practice, this normally is not possible or advisable considering the substantially longer timeframe of criminal or regulatory investigations (which can extend for several months or years).

The police or a regulator may request a company to share any relevant information that it might have on the facts being reviewed by them. However, the company’s obligation to provide that information would have to be reviewed on a case-by-case basis, depending on the information being requested (eg, whether it is sensitive to the business, such as trade secrets or internal correspondence) and the grounds to do so (if the police or regulator have a search warrant issued by a court or not).

The actions of the employer may carry through to a subsequent state proceeding. First and foremost, any prohibitions on the use of evidence must be considered. Whereas in civil proceedings the interest in establishing the truth must merely prevail for exploitation (article 152 paragraph 2, Swiss Civil Procedure Code), in criminal proceedings, depending on the nature of the unlawful act, there is a risk that the evidence may not be used (see question 27 and article 140 et seq, Swiss Civil Procedure Code).