Guidelines 03/2019 on processing of personal data through video devices
Subparagraph 18.104.22.168 Making case-by-case decisions
32. As the balancing of interests is mandatory according to the regulation, the decision has to be made on a case-by-case basis (see Article 6 (1) (f)). Referencing abstract situations or comparing similar cases to one another is insufficient. The controller has to evaluate the risks of the intrusion of the data subject’s rights; here the decisive criterion is the intensity of intervention for the rights and freedoms of the individual.
33. Intensity can inter alia be defined by the type of information that is gathered (information content), the scope (information density, spatial and geographical extent), the number of data subjects concerned, either as a specific number or as a proportion of the relevant population, the situation in question, the actual interests of the group of data subjects, alternative means, as well as by the nature and scope of the data assessment.
34. Important balancing factors can be the size of the area, which is under surveillance and the amount of data subjects under surveillance. The use of video surveillance in a remote area (e. g. to watch wildlife or to protect critical infrastructure such as a privately owned radio antenna) has to be assessed differently than video surveillance in a pedestrian zone or a shopping mall.
35 Example: If a dash cam is installed (e. g. for the purpose of collecting evidence in case of an accident), it is important to ensure that this camera is not constantly recording traffic, as well as persons whoare near a road. Otherwise the interest in having video recordings as evidence in the more theoretical case of a road accident cannot justify this serious interference with data subjects’ rights.