Workplace Investigations

There is no statutory regime for employee witnesses in internal (workplace) investigations and, hence, no specific statutory regime for legal protection. However, as part of the idea that employees have to act in line with good employment practices (section 7:611 DCC), employees, who potentially acquired knowledge in a work-related context on the subject matter of an investigation, are typically required vis-à-vis their employer to participate in such internal investigations. The required degree of cooperation will depend on the type and nature of the investigation and the matter that is being investigated. The principle of “good employment practices” in turn requires the employer to be guided by proportionality and subsidiarity considerations: which information is relevant to the investigation and what is the least burdensome means of collecting such information?

This may also impact the degree to which an employer can involve employee witnesses in an investigation. Increased prudence should be observed, among other things, if the relevant employee witnesses may themselves become implicated in the investigation or when the employer envisages sharing certain investigative findings with regulatory or criminal authorities, for instance as part of cooperation arrangements in an ongoing investigation. In such cases, the relevant employee should at least be allowed to retain legal counsel before continuing interview procedures.

Neither the employer nor the employee subject of the investigation can compel co-workers to act as a witness. There is no specific law for whistleblowers or employees who act as witnesses during an investigation. Nevertheless, the employer can have its own whistleblower policy.

Due to the employee's duty of loyalty towards the employer and the employer's right to give instructions to its employees, employees generally must take part in an ongoing investigation and comply with any summons for questioning if the employer demands this (article 321d, Swiss Code of Obligations). If the employees refuse to participate, they generally are in breach of their statutory duties, which may lead to measures such as a termination of employment.

The question of whether employees may refuse to testify if they would have to incriminate themselves is disputed in legal doctrine.[1] However, according to legal doctrine, a right to refuse to testify exists if criminal conduct regarding the questioned employee or a relative (article 168 et seq, Swiss Criminal Procedure Code) is involved, and it cannot be ruled out that the investigation documentation may later end up with the prosecuting authorities (ie, where employees have a right to refuse to testify in criminal proceedings, they cannot be forced to incriminate themselves by answering questions in an internal investigation).[2]

An implicated person is typically provided with a summary description of the scope of the investigation and, hence, the allegations against such an employee (if any). This is usually done in the interview invite sent to the relevant interviewee, which also provides an opportunity to prepare for an interview and (if relevant) seek legal advice.

During the fact-finding stage of the investigation, the employees under investigation are not generally entitled to information concerning the conduct of the investigation. It is the prerogative of management to involve the employee under investigation during the fact-finding stage. When, however, the employer determines that an administrative disciplinary process must proceed, the employee’s right to due process attaches. As such, due process includes the right to be informed of the grounds relied upon by the employer and the opportunity to be heard. The first notice or notice to explain should specifically inform the employee of the charge against him or her.

As a result of the employer's duty of care (article 328, Swiss Code of Obligations), employees under investigation have certain procedural rights. These include, in principle, the right of the accused to be heard. In this context, the accused has the right to be informed at the beginning of the questioning about the subject of the investigation and at least the main allegations and they must be allowed to share their view and provide exculpatory evidence.[1] The employer, on the other hand, is not obliged to provide the employee with existing evidence, documents, etc, before the start of the questioning.[2]

Covert investigations in which employees are involved in informal or even private conversations to induce them to provide statements are not compatible with the data-processing principles of good faith and the requirement of recognisability, according to article 4 of the Swiss Federal Act on Data Protection.[3]

Also, rights to information arise from the Swiss Federal Act on Data Protection. In principle, the right to information (article 8, Swiss Federal Act on Data Protection) is linked to a corresponding request for information by the concerned person and the existence of data collection within the meaning of article 3 (lit. g), Swiss Federal Act on Data Protection. Insofar as the documents from the internal investigation recognisably relate to a specific person, there is in principle a right to information concerning these documents. Subject to certain conditions, the right to information may be denied, restricted or postponed by law (article 9 paragraph 1, Swiss Federal Act on Data Protection). For example, such documents and reports may also affect the confidentiality and protection interests of third parties, such as other employees. Based on the employer's duty of care (article 328, Swiss Code of Obligations), the employer is required to protect them by taking appropriate measures (eg, by making appropriate redactions before handing out copies of the respective documents (article 9 paragraph 1 (lit. b), Swiss Federal Act on Data Protection)).[4] Furthermore, the employer may refuse, restrict or defer the provision of information where the company’s interests override the employee’s, and not disclose personal data to third parties (article 9 paragraph 4, Swiss Federal Act on Data Protection). The right to information is also not subject to the statute of limitations, and individuals may waive their right to information in advance (article 8 paragraph 6, Swiss Federal Act on Data Protection). If there are corresponding requests, the employer must generally grant access, or provide a substantiated decision on the restriction of the right of access, within 30 days (article 8 paragraph 5, Swiss Federal Act on Data Protection and article 1 paragraph 4, Ordinance to the Federal Act on Data Protection).

In case there is a parallel criminal or regulatory investigation usually consultation between the investigators and the authorities takes place. Agreements are then sometimes made about the investigation conducted by / for the employer. In some cases, the authorities will ask to stay the investigation. There is no policy from the government on this topic.

There are situations where the authorities can compel the employer to share evidence. This depends on the exact circumstances of the case. For instance if the employer is the suspect in a criminal case.

It does occur that the authorities are given evidence upon request without the authorities having to order the extradition of evidence.  

It is within the employer’s discretion to pursue the investigation even if a parallel criminal or regulatory investigation is taking place. As such, different investigations may proceed independently of each other. However, if the workplace investigation would interfere with or hinder the criminal or regulatory investigation, the workplace investigation should defer to the investigation being conducted by the people in authority. Since the nature of a workplace investigation is highly confidential, the police or regulations cannot compel any evidence from the employer without a court order.

The actions of the employer may carry through to a subsequent state proceeding. First and foremost, any prohibitions on the use of evidence must be considered. Whereas in civil proceedings the interest in establishing the truth must merely prevail for exploitation (article 152 paragraph 2, Swiss Civil Procedure Code), in criminal proceedings, depending on the nature of the unlawful act, there is a risk that the evidence may not be used (see question 27 and article 140 et seq, Swiss Civil Procedure Code).