Yes, you can have CCTV cameras in the workplace — but only under very specific conditions established by Portuguese law and the GDPR. Here is what the law allows, what it prohibits and what you must do before installing any cameras.

What the law allows

Surveillance cameras can be used for the security of people, assets and facilities. Legitimate uses include: monitoring entry and exit points, factory floor or warehouse areas where there are safety risks, parking areas, and areas with high-value goods.

What the law prohibits

Cameras cannot be used to monitor employee productivity or work performance. They cannot be placed in areas where employees have a reasonable expectation of privacy: toilets, changing rooms, break rooms, canteens. Using camera footage to justify disciplinary actions based on work performance (not security) is legally risky.

What you must do before installing cameras

• Notify the National Data Protection Commission (CNPD) — or carry out a DPIA if required.
• Inform employees in writing before installation, explaining the purpose, coverage area and data retention period.
• Place clearly visible signs in all areas with cameras.
• Limit recording retention to the minimum necessary (typically 30 days unless there is a specific incident requiring longer retention).

This article is for informational purposes only and does not constitute legal advice. Consult a privacy or employment lawyer before installing surveillance systems.