Workplace Investigations

GDPR principles fully apply to data gathering, as well as case law protecting the right to respect one’s private life and the secret of correspondence.

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 internal investigations, the fundamental rights and freedoms of employees are at stake,  including the right to privacy, respect for the privacy of home life and correspondence, freedom of expression, and the obligation of loyalty in searching for evidence.

In principle, work emails and files can be reviewed, even without the employee's consent, prior knowledge or warning. This includes: work email accounts; files stored on a work computer or a USB key connected to a work computer; and SMS messages and files stored on a work mobile phone and documents stored in the workplace unless they are labelled as “personal”. On the other hand, it is not permissible for an employer (or an investigator) to review “personal” emails and files, such as documents or emails identified as “personal” by the employee, or personal email accounts (Gmail, Yahoo, etc), even if accessed from a work computer.

There are certain exceptions to the above principle. An employer is allowed to check “personal” emails or data in any of the following cases:

• if the employee is present during the review;
• if the employee is absent, but was duly notified and invited to be present;
• if there is a particularly serious “specific risk or event”;
• if the review is authorised by a judge (this means having to prove a legitimate reason justifying not informing the employee).

When documents or emails are not marked as “personal” but contain information of a personal nature, the employer may open and review the data but may not use such documents or emails to justify applying disciplinary measures to the employee or use such documents or emails as evidence in court if they indeed relate to the employee’s private life.

Special attention must be given to employee representatives who must be entirely free to carry out their duties.

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]