Workplace Investigations

Internal investigations are usually initiated after reports about possible violations of the employer's code of conduct, applicable laws or regulations have been submitted by employees to their superiors, the human resources department or designated internal reporting systems such as hotlines (including whistleblowing hotlines).

For an internal investigation to be initiated, there must be a reasonable suspicion (grounds).[1] If no such grounds exist, the employer must ask the informant for further or more specific information. If no grounds for reasonable suspicion exists, the case must be closed. If grounds for reasonable suspicion exist, the appropriate investigative steps can be initiated by a formal investigation request from the company management.[2]

The circumstances in which an employer commences a workplace investigation may vary, either through a whistleblower, through an internal system, email or phone call; complaints from suppliers, contractors, or customers; or accounts from observations and hearsay. Sometimes, it comes from anonymous complaints. However, it is common for an employer to verify whether the report or complaint is substantiated, partially substantiated, or unsubstantiated, which is sufficient to initiate and commence a workplace investigation.

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]

There is no obligation to share the investigation report or the findings unless the employer and employee agree to do so.

However, under Decree No. 13/2023/ND-CP on personal data protection, the contents of the investigation report or findings related to the employee are likely to constitute the personal data of the employee under investigation. In that case, the employee may have a right under the said Decree to obtain copies of such documents by making a statutory data access request after the workplace investigation is completed. Where the employer is required to provide such documents to the employee under Decree No. 13/2023/ND-CP but the requested documents also contain the personal data of any other third parties (such as the employee’s co-workers who participated in the interview during the investigation), the employer should first redact or erase such data before providing the requested documents, unless the relevant third parties have consented to the disclosure of their personal data.