Workplace Investigations

GDPR and the provisions of L. 4624/2019 regulate the gathering of physical evidence from a data protection perspective, providing, among other things, that personal data should be processed with transparency and to the extent necessary for the investigation.

L.4990/2022 on the protection of persons who report breaches of Union law regulates data protection issues in the context of whistleblowing investigations, mainly to safeguard confidentiality throughout the investigations.  

Dutch data protection rules are based on the EU Data Protection Directive. The employer has to notify the Dutch Data Protection Authority when processing personal data as part of an internal investigation. Given that the notification can be accessed publicly, it is recommended that the employer give a sufficiently high-level description of the case. In addition, the description should be sufficiently broad to include the entire investigation, and any future expansions of the scope of the investigation. Often companies make filings for all future internal investigations, without referring to specific matters.

The employer has to notify employees whose personal data is being processed about – among other things – the purposes of the investigation and any other relevant information. According to the Dutch Data Protection Act, this information obligation may only be suspended on restricted grounds, i.e. if the purpose of the investigation is the prevention, detection and prosecution of crimes and postponement is necessary for the interests of the investigation (e.g., because there is a risk of losing evidence, or collusion by individuals coordinating responses before being interviewed)). These exceptions on the duty to inform involved persons must be interpreted very restrictively. As soon as the reason for postponement is no longer applicable (e.g., because the evidence has been secured), the individuals need to be informed.

Dutch data protection law does not require the consent of employees. Consent given by employees, however, also cannot compensate for a lack of legitimate purpose or unnecessary or disproportionate data processing, as the consent given by an employee to its employer is not considered to be voluntary given the inequality of power between them.

Furthermore, internal company policies may contain specific data protection rules.

The Swiss Federal Act on Data Protection applies to the gathering of evidence, in particular such collection must be lawful, transparent, reasonable and in good faith, and data security must be preserved.[1]

It can be derived from the duty to disclose and hand over benefits received and work produced (article 321b, Swiss Code of Obligations) as they belong to the employer.[2] The employer is, therefore, generally entitled to collect and process data connected with the end product of any work completely by an employee and associated with their business. However, it is prohibited by the Swiss Criminal Code to open a sealed document or consignment to gain knowledge of its contents without being authorised to do so (article 179 et seq, Swiss Criminal Code). Anyone who disseminates or makes use of information of which he or she has obtained knowledge by opening a sealed document or mailing not intended for him or her may become criminally liable (article 179 paragraph 1, Swiss Criminal Code).

It is advisable to state in internal regulations that the workplace might be searched as part of an internal investigation and in compliance with all applicable data protection rules if this is necessary as part of the investigation.

In principle, there is no specific obligation for investigating persons to disclose their findings. For proceedings before a court that have been initiated or investigated by the police or competent regulatory bodies, the relevant findings may be communicated under strict conditions and provided that the personal data of the parties involved are not publicly disclosed.

More specifically, under L. 4490/2022, in the context of whistleblowing procedures, personal data and any information that leads, directly or indirectly, to the identification of the complainant are not disclosed to anyone other than employees involved in the investigation, unless the complainant consents. The identity of the complainant and any other information may only be disclosed in the context of investigations by competent authorities or judicial proceedings, to the extent necessary for the protection of the employee under investigation’s rights of defence. Confidentiality obligations govern the procedure for revealing trade secrets to police and regulatory bodies, especially in the framework of L.4990/2022.

The fundamental right to a fair hearing entails that the investigation findings must be disclosed to the employee under investigation at least once, so that they are given the opportunity to respond to them. Under Dutch administrative or criminal law, there are no general provisions requiring disclosure of investigative findings to regulators or criminal authorities. Certain specific provisions, however, apply, for example, in reportable incidents at financial institutions or certain HSE incidents that need to be disclosed to relevant regulatory authorities. Regulatory and criminal authorities, however, do have broad investigative powers enabling them to order the provision of data from subjects or involved parties in investigations they are conducting. Such information may also comprise investigation findings and underlying documents, such as interview records. If such interview records are subject to legal privilege (see question 14), they are typically not subject to disclosure to the relevant authorities.

Under Dutch civil law, a party that possesses certain records (such as investigation findings and underlying documents) is generally not required to disclose those to other parties for inspection. Parties are, in principle, not required to share information with third parties, other than relevant authorities (see above).

An exception to this rule is section 843a Dutch Code of Civil Procedure. Under section 843a, a party can be required to produce specific exhibits, if:

• the requesting party has a legitimate interest;
• the request concerns specific and well-defined records or information (ie, no fishing expeditions); and
• the documents pertain to a legal relationship (e.g., a contract or alleged tort; the requested party does not need to be a party to the relevant legal relationship).

If these requirements are met, the requestee should, in principle, disclose the requested information, except for specific exceptions. Such exceptions, which can also be relevant in the context of internal (workplace) investigations, could include confidentiality arrangements and privacy protection, to the extent that this would qualify as a compelling interest. To establish such a compelling interest, the relevant interest should outweigh the requesting party's legitimate interest regarding the requested information. This is a balancing act. Documents that are subject to legal privilege are protected against disclosure.

The employer is generally not required to disclose the final report, or the data obtained in connection with the investigation. In particular, the employer is not obliged to file a criminal complaint with the police or the public prosecutor's office.

Exceptions may arise, for example, from data protection law (see question 22) or a duty to release records may arise in a subsequent state proceeding.

Data voluntarily submitted in a proceeding in connection with the internal investigation shall be considered private opinion or party assertion.[1] If the company refuses to hand over the documents upon request, coercive measures may be used under certain circumstances.[2]