Workplace Investigations

Mainly, the Occupational Safety and Health Act (738/2002). In addition, the following also have relevance in connection to a workplace investigation: the Employment Contracts Act (55/2001), the Criminal Code (39/1889), the Act on Occupational Safety and Health Enforcement and Cooperation on Occupational Safety and Health at Workplaces (44/2006), the Act on Equality between Women and Men (609/1986) and the Non-discrimination Act (1325/2014). In addition, the employer's own policies must be taken into consideration while conducting a workplace investigation.

Pursuant to article 98 of the Portuguese Labour Code, the employer has a disciplinary power over its employees during the employment period. This is enforced through the initiation of disciplinary procedures – which can include a preliminary workplace investigation as provided for in article 352(1) of the Portuguese Labour Code – and ultimately the application of sanctions laid down by law or in an applicable collective bargaining agreement.

The Portuguese Labour Code governs disciplinary procedures, which can include a preliminary workplace investigation, in two different sections. On the one hand, articles 328 to 332 establish general rules regarding the imposition of disciplinary sanctions; statutory deadlines and statutes of limitations involved; decision criteria; penalties; and disciplinary records. On the other hand, articles 351 to 358 lay down the rules applicable to dismissals with cause, which are also widely understood to be applicable concerning conservatory sanctions (i.e. those that enable the continuity of the employment relationship).

Additionally, collective bargaining agreements may provide for different disciplinary penalties, as long as the rights and guarantees of employees are not impaired.

Workplace investigations must also abide by the general rules laid down in the Portuguese Constitution, Portuguese Civil Code and Data Protection Laws (including guidelines issued by the Data Protection Agency), as regards the personal rights of the employees.

Please see question 7. The outcome of the investigation involving personal data may be retained only for as long as is necessary considering the purposes of the processing. In general, the retention of investigation-related data may be necessary while the investigation is still ongoing and even then the requirements of data minimization and accuracy should be considered. The data concerning the outcome of an investigation should be registered to the employee's record merely to the extent necessary in light of the employment relationship or potential disciplinary measures. In this respect, the applicable retention time depends on labour law-related rights and limitations, considering eg, the applicable periods for filing a suit.

There are no specific rules in the Portuguese Labour Code on this matter.

However, article 332 of the PLC states that the employer should keep an updated record of disciplinary sanctions, so the competent authorities can easily verify compliance with applicable provisions. Accordingly, it is advisable to maintain a record of disciplinary sanctions during the entire employment relationship.

Also, please note that some collective bargaining agreements state that the disciplinary register must be deleted from the employee’s record periodically.