Workplace Investigations

There are no specific rules if unrelated matters are revealed during the investigation. If, in the course of the workplace investigation, new facts are discovered, the same principles apply as for the original reason for the investigation and the employer should consider whether to extend the investigation to the new matter too.

If the investigation yields unrelated matters, the employer will need to decide whether such matters should be followed up in the same or a separate investigation. If such matters include new allegations against an employee that are already involved in the investigation, the employer should, before interviewing (or at the start of such an interview) inform the implicated employees of the relevant new allegations that are the subject of the 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.

If there is no special statutory storage period (which is the case for investigative reports and findings), personal data may only be stored for as long as is necessary for the purposes for which they are collected. As soon as the data is no longer required, it must be deleted. In connection with workplace investigations, the question arises as to how this obligation to delete personal data relates to the company's corporate interests. From the company's perspective, there may well be legitimate interests that speak in favour of retaining existing data for as long as possible. Under the data protection regulations of the DSGVO and the BDSG, data can be stored for as long as it is required for the assertion, exercise or defence of (civil) legal claims. This means that the data can, in any event, be saved at least as long as any measures related to the workplace investigation have not yet been completed and any legal disputes have not yet been concluded.

The outcomes are usually kept in the records until termination of the employment agreement and only deleted when personal records are deleted.

From an employment law point of view, there is no statute of limitations on the employee's violations. Based on the specific circumstances (eg, damage incurred, type of violation, basis of trust or the position of the employee), a decision must be made as to the extent to which the outcome should remain on the record.

From a data protection point of view, only data that is in the interest of the employee (eg, to issue a reference letter) may be retained during the employment relationship. In principle, stored data must be deleted after the termination of the employment relationship. Longer retention may be justified if rights are still to be safeguarded or obligations are to be fulfilled in the future (eg, data needed regarding foreseeable legal proceedings, data required to issue a reference letter or data in relation to a non-competition clause).[1]