Workplace Investigations

GDPR and the provisions of L. 4624/2019 regulate the gathering of physical evidence from a data protection perspective, providing, among other things, that personal data should be processed with transparency and to the extent necessary for the investigation.

L.4990/2022 on the protection of persons who report breaches of Union law regulates data protection issues in the context of whistleblowing investigations, mainly to safeguard confidentiality throughout the investigations.  

Dutch data protection rules are based on the EU Data Protection Directive. The employer has to notify the Dutch Data Protection Authority when processing personal data as part of an internal investigation. Given that the notification can be accessed publicly, it is recommended that the employer give a sufficiently high-level description of the case. In addition, the description should be sufficiently broad to include the entire investigation, and any future expansions of the scope of the investigation. Often companies make filings for all future internal investigations, without referring to specific matters.

The employer has to notify employees whose personal data is being processed about – among other things – the purposes of the investigation and any other relevant information. According to the Dutch Data Protection Act, this information obligation may only be suspended on restricted grounds, i.e. if the purpose of the investigation is the prevention, detection and prosecution of crimes and postponement is necessary for the interests of the investigation (e.g., because there is a risk of losing evidence, or collusion by individuals coordinating responses before being interviewed)). These exceptions on the duty to inform involved persons must be interpreted very restrictively. As soon as the reason for postponement is no longer applicable (e.g., because the evidence has been secured), the individuals need to be informed.

Dutch data protection law does not require the consent of employees. Consent given by employees, however, also cannot compensate for a lack of legitimate purpose or unnecessary or disproportionate data processing, as the consent given by an employee to its employer is not considered to be voluntary given the inequality of power between them.

Furthermore, internal company policies may contain specific data protection rules.

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.

The conditions applicable to gathering physical evidence mainly stem from the precedents of the Turkish Constitutional Court about employment disputes and the rules set forth under Turkish Law No. 6698 on the Protection of Personal Data (DPL). It is generally accepted that employers can gather physical evidence for certain legitimate purposes, such as disciplinary investigations, the prevention of bribery and corruption, fraud or theft, money laundering, and employee performance monitoring and compliance. In doing so, employers must, however, comply with the fundamental principles of the Turkish Constitutional Court as briefly described below:

• The grounds for the gathering of evidence must be legitimate. The definition of the legitimate interests of the employer may change depending on the characteristics of the business, workplace and employee job description, as well as the specific circumstances of the case. Therefore, it is advisable to carry out a balancing test between the legitimate interest the employer is seeking to protect and the employee’s interest in the protection of their privacy.
• The collection activities must be proportionate, in the sense that the measure implemented by the employer must be appropriate and reasonably necessary to achieve the legitimate purpose, without infringing upon the fundamental rights and freedoms of the employees. For instance, e-mail monitoring to collect evidence may not be proportionate if it is determined that e-mails that are not related to the incident subject to investigation are also accessed. To achieve this, certain keywords or algorithms can be used while monitoring e-mails during a disciplinary investigation.
• The collection process must be necessary to achieve the purpose. In other words, the collection of physical evidence must only be carried out to the extent there are no other measures allowing the employer to achieve its purpose, such as witness testimony, workplace records, or examining the results of projects. If the purpose can be achieved through less invasive means, the collection of physical evidence may not comply with the principles established by the decisions of the Constitutional Court.

Separately, depending on the type of physical evidence collected, the collection process may lead to the processing of the concerned employees’ personal data. Under the DPL, personal data collected in Turkey can only be processed if the explicit consent of the data subject is obtained; or the data is processed based on one of the exceptions to consent provided by the law. To the extent the data processing can be deemed to be based on the pursuit of a legitimate interest of the employer, it should also meet the following conditions:

• it should be the most convenient and efficient method to identify any employee wrongdoing to protect the legitimate interests of the company; and
• the data processing should not harm the fundamental rights and freedoms of the employees.

The employer should in any case comply with the obligation to inform employees before the processing of their data, through a privacy notice containing mandatory information required by the DPL.

In addition, as a general principle, the evidence-gathering process should always be conducted based on the assumption that the internal investigation can lead to litigation. Any evidence that will be used in litigation needs to have been gathered in compliance with the law. In both criminal and civil litigation, the courts will review each piece of evidence to confirm whether it was gathered through lawful methods and disregard any evidence that fails to comply with due process.