Workplace Investigations

Under the GDPR (General Data Protection Regulation), personal data must be processed lawfully, fairly and in a transparent manner in relation to the data subject. The Data Protection Commission published Data Protection in the Workplace: Employer Guidance in April 2023, which is a useful guide.

Employers should exercise caution when gathering physical evidence that may involve the use of CCTV or other surveillance practices. The Irish Court of Appeal in the case of Doolin v DPC examined the use by an employer of CCTV footage for disciplinary purposes and found such use constituted unlawful further processing. The original reason for processing the CCTV footage was to establish who was responsible for terrorist-related graffiti that was carved into a table in the staff tearoom. It subsequently transpired Mr Doolin, who was in no way connected to the graffiti incident, had accessed the tearoom for unauthorised breaks and a workplace investigation followed. The original reason for viewing the CCTV related to security, but further use of the CCTV footage in the disciplinary investigation was not related to the original reason. This case confirms that employers must have clear policies in place in compliance with both GDPR and the Data Protection Act 2018 specifying the purpose for which CCTV or any other monitoring system is being used. Not only that, but these policies must be communicated to employees specifying the use of such practices.

It is not only data about the investigation that must be processed fairly, but any retention of the data, which can only be further processed with good reason. It is a legitimate business reason to retain data to deal with any subsequent requests or appeals under various internal or statutory processes, provided employees have been advised of the relevant retention period.

Several legal and case-law principles may be relevant depending on the kind of investigation, including the following:

• gathering evidence through employee “physical inspections and inspections on the employee’s belongings”: according to article 6 of the Workers’ Statute, these inspections are generally prohibited. They are permitted only where necessary to protect company assets (in such cases, corporal inspections may be carried out, subject to trade union agreement or National Labour Inspectorate authorisation, provided that, for example, they are carried out outside the workplace, that employees are selected with an automatic selection tool, and that the dignity and confidentiality of employees are protected);
• gathering evidence through “audiovisual equipment and other instruments from which the possibility of remote control of employees’ activities arises”: according to article 4 of the Workers’ Statute, remote systems cannot be directly aimed at controlling employees’ activity, but can only be put in place for organisational, production, work safety or asset-protection needs (which may result in an indirect control over employees’ activity), and may be installed before a trade union agreement or with previous authorisation from the National Labour Inspectorate; however, these rules do not apply to working tools in an employee’s possession (see question 8) and, in any case, employees must be informed of the possibility of remote control;
• gathering physical evidence through so-called defensive controls: according to the most recent case law, “defensive controls” can be defined as investigations carried out by the company where it has a suspicion of unlawful conduct by its employees. These controls can be carried out within certain limits and restrictions provided by case law – even in the absence of the guarantees provided for in article 4 of the Workers’ Statute.

In addition, when gathering physical evidence, there may be other provisions of law not strictly related to employment law that must be followed, for example, regarding privacy regulations (eg, minimisation of the use of personal data, collection of data only for specific purposes, and adoption of safety measures).

When gathering evidence, the person being investigated is protected by the Constitution, the Freedom of Information Act and the Nigerian Data Protection Regulation (NDPR), among others.

The Constitution, particularly section 37, guarantees the right of a person to privacy.

The NDPR is the main data protection regulation in Nigeria. It regulates the processing and transfer of personal data.

Further, the Freedom of Information Act, 2011 prohibits the disclosure of information gathered during an investigation to the public.

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.