Workplace Investigations

Confidentiality protects the interests of the persons involved in the investigation as well as the integrity of the investigation. Before providing information as part of the investigation, employers should direct the complainant, respondent or witnesses to sign confidentiality agreements. This agreement should direct the person to refrain from discussing the investigation or matters that are the subject of the investigation with any person other than the investigator.

It is also best practice for participants in the investigation to be directed not to victimise (threaten or subject to any detriment) any persons who are witnesses to or are otherwise involved in the investigation.

After an investigation, employers should write to the complainant, respondent and any witnesses reminding them of their ongoing confidentiality obligations.

Besides the employee's duty of performance (article 319, Swiss Code of Obligations), the employment relationship is defined by the employer's duty of care (article 328, Swiss Code of Obligations) and the employee's duty of loyalty (article 321a, Swiss Code of Obligations). Ancillary duties can be derived from the two duties, which are of importance for the confidentiality of an internal investigation.[1]

In principle, the employer must respect and protect the personality (including confidentiality and privacy) and integrity of the employee (article 328 paragraph 1, Swiss Code of Obligations) and take appropriate measures to protect the employee. Because of the danger of pre-judgment or damage to reputation as well as other adverse consequences, the employer must conduct an internal investigation discreetly and objectively. The limits of the duty of care are found in the legitimate self-interest of the employer.[2]

In return for the employer's duty of care, employees must comply with their duty of loyalty and safeguard the employer's legitimate interests. In connection with an internal investigation, employees must therefore keep the conduct of an investigation confidential. Additionally, employees must keep confidential and not disclose to any third party any facts that they have acquired in the course of the employment relationship, and which are neither obvious nor publicly accessible.[3]

It is not uncommon for respondents to an investigation to take personal or carer’s leave (sick leave) claiming that they are suffering from stress or anxiety. If this occurs, employers need to act appropriately, but this does not necessarily involve stopping the investigation process.

Employers should:

• assess the medical evidence to ascertain the respondent’s condition and determine how long they are likely to be unwell;
• avoid exacerbating the condition;
• determine whether the employee is unfit to attend the investigation meeting;
• take into consideration the evidence of other witnesses;
• consider delaying the investigation for a short period; and
• consider conducting the interviews in other ways, for example, in writing.

While all efforts should be made to accommodate an employee who has taken personal or carer’s leave during an investigation, if the respondent does not participate in the investigation, the investigation report may be prepared based on the available evidence.

The time spent on the internal investigation by the employee should be counted as working time[1]. The general statutory and internal company principles on sick leave apply. Sick leave for which the respective employee is not responsible must generally be compensated (article 324a paragraph 1 and article 324b, Swiss Code of Obligations). During certain periods of sick leave (blocking period), the employer may not ordinarily terminate the employment contract; however, immediate termination for cause remains possible.

The duration of the blocking period depends on the employee's seniority, amounting to 30 days in the employee's first year of service, 90 days in the employee's second to ninth year of service and 180 days thereafter (article 336c paragraph 1 (lit. c), Swiss Code of Obligations).