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      Blog

      Processing of personal data through video devices

      • Categories Blog, Business, Design / Branding, Free Data Protection Resources, Uncategorized
      • Date October 27, 2020

      Guidelines 03/2019 on processing of personal data through video devices

      Section 5.1  General considerations when processing biometric data

      73. The use of biometric data and in particular facial recognition entail heightened risks for data subjects’ rights. It is crucial that recourse to such technologies takes place with due respect to the principles of lawfulness, necessity, proportionality and data minimisation as set forth in the GDPR. Whereas the use of these technologies can be perceived as particularly effective, controllers should first of all assess the impact on fundamental rights and freedoms and consider less intrusive means to achieve their legitimate purpose of the processing.

      74. To qualify as biometric data as defined in the GDPR, processing of raw data, such as the physical, physiological or behavioural characteristics of a natural person, must imply a measurement of this characteristics. Since biometric data is the result of such measurements, the GDPR states in its Article 4.14 that it is “[…] resulting from specific technical processing relating to the physical, physiological or behavioural characteristics of a natural person,which allow or confirm the unique identification of that natural person[…]”. The video footage of an individual cannot however in itself be considered as biometric data under Article 9, if it has not been specifically technically processed in order to contribute to the identification of an individual.

      75. In order for it to be considered as processing of special categories of personal data (Article 9) it requires that biometric data is processed “for the purpose of uniquely identifying a natural person”.

      76. To sum up, in light of Article 4.14 and 9, three criteria must be considered:

      • Nature of data : data relating to physical, physiological or behavioural characteristics of a natural person,

      • Means and way of processing: data “resulting from a specific technical processing”,

      • Purpose of processing: data must be used for the purpose ofuniquely identifying a natural person.

      77. The use of video surveillance including biometric recognition functionality installed by private entities for their own purposes (e.g. marketing, statistical, or even security) will, in most cases, require explicit consent from all data subjects (Article 9 (2) (a)), however another suitable exception in Article 9 could also be applicable.

      78

      Example: To improve its service a private company replaces passenger identification check points within an airport (luggage drop-off, boarding) with video surveillance systems that use facial recognition techniques to verify the identity of the passengers that have chosen to consent to such a procedure. Since the processing falls under Article 9, the passengers, who will have previously given their explicit and informed consent, will have to enlist themselves at for example an automatic terminal in order to create and register their facial template associated with their boarding pass and identity. The check points with facial recognition need to be clearly separated, e. g. the system must be installed within a gantry so that the biometric templates of non-consenting person will not be captured. Only the passengers,who will have previously given their consent and proceeded with their enrolment, will use the gantry equipped with the biometric system. .

      Example: A controller manages access to his building using a facial recognition method. People can only use this way of access if they have given their explicitly informed consent (according to Article 9 (2) (a)) beforehand. However, in order to ensure that no one who has not previously given his or her consent is captured, the facial recognition method should be triggered by the data subject himself, for instance by pushing a button. To ensure the lawfulness of the processing, the controller must always offer an alternative way to access the building, without biometric processing, such as badges or keys.

      79. In this type of cases, where biometric templates are generated, controllers shall ensure that once a match or no-match result has been obtained, all the intermediate templates made on the fly (with the explicit and informed consent of the data subject) in order to be compared to the ones created by the data subjects at the time of the enlistment, are immediately and securely deleted. The templates created for the enlistment should only be retained for the realisation of the purpose of the processing and should not be stored or archived.

      80. However, when the purpose of the processing is for example to distinguish one category of people from another but not to uniquely identify anyone the processing does not fall under Article 9.

      81 Example: A shop owner would like to customize its advertisement based on gender and age characteristics of the customer captured by a video surveillance system. If that system does not generate biometric templates in order to uniquely identify persons but instead just detects those physical characteristics in order toclassifythe personthen the processing would not fall under Article 9 (as long as no other types of special categories of data are being processed).

      82. However, Article 9 applies if the controller stores biometric data (most commonly through templates that are created by the extraction of key features from the raw form of biometric data (e.g. facial measurements from an image)) in order to uniquely identify a person. If a controller wishes to detect a data subject re-entering the area or entering another area (for example in order to project continued customized advertisement), the purpose would then be to uniquely identify a natural person, meaning that the operation would from the start fall under Article 9. This could be the case if a controller stores generated templates to provide further tailored advertisement on several billboards throughout different locations inside the shop. Since the system is using physical characteristics to detect specific individuals coming back in the range of the camera (like the visitors of a shopping mall) and tracking them, it would constitute a biometric identification method because it is aimed at recognition through the use of specific technical processing.

      83 Example: A shop owner has installed a facial recognition system inside his shop in order to customize its advertisementtowards individuals. The data controller has to obtain the explicit and informed consent of all data subjects before using this biometric system and delivering tailored advertisement. The system would be unlawful if it captures visitors or passers-by who have not consented to the creation of their biometric template, even if their template is deleted within the shortest possible period. Indeed, these temporary templates constitute biometric data processed in order to uniquely identify a person who may not want to receive targeted advertisement.

      84. The EDPB observes that some biometric systems are installed in uncontrolled environments, which means that the system involves capturing on the fly the faces of any individual passing in the range of the camera, including persons who have not consented to the biometric device, and thereby creating biometric templates. These templates are compared to the ones created of data subjects having given their prior consent during anenlistment process (i.e. a biometric devise user) in order for the data controller to recognise whether the person is a biometric device user or not. In this case, the system is often designed to discriminate the individuals it wants to recognize from a database from those who are not enlisted. Since the purpose is to uniquely identify natural persons, an exception under Article 9 (2) GDPR is still needed for anyone captured by the camera.

      85

      Example: A hotel uses video surveillance to automatically alert the hotel manager that a VIP has arrived when the face of the guest is recognized. These VIPs have priory given their explicit consent to the use of facial recognition before being recorded in a database established for that purpose. These processing systems of biometric data would be unlawful unless all other guests monitored (in order to identify the VIPs) have consented to the processing according to Article 9 (2) (a) GDPR.

      Example: A controller installs a video surveillance system with facial recognition at the entrance of the concert hall he manages. The controller must set up clearly separated entrances; one with a biometric system and one without (where you instead for example scan a ticket). The entrances equipped with biometric devices, must be installed and made accessible in a way that prevents the system from capturing biometric templates of non-consenting spectators.

      86. Finally, when the consent is required by Article 9 GDPR, the data controller shall not condition the access to its services to the acceptance of the biometric processing. In other words and notably when the biometric processing is used for authentication purpose, the data controller must offer an alternative solution that does not involve biometric processing – without restraints or additional cost for the data subject. This alternative solution is also needed for persons who do not meet the constraints of the biometric device (enrolment or reading of the biometric data impossible, disability situation making it difficult to use, etc.) and in anticipation of unavailability of the biometric device (such as a malfunction of the device), a “back-up solution” must be implemented to ensure continuity of the proposed service, limited however to exceptional use. In exceptional cases, there might be a situation where processing biometric data is the core activity of a service provided by contract, e.g. a museum that sets up an exhibition to demonstrate the use of a facial recognition device, in which case the data subject will not be able to reject the processing of biometric data should they wish to participate in the exhibition. In such case the consent required under Article 9 is still valid if the requirements in Article 7 are met.

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