The submitted article devotes to the protection of personal data, the protection of personal rights in connection to the use of monitoring devices - camera systems. It analyses legal regulation valid and effective up to 25.5.2018, namely the selected parts, which are assessed in view of suitability and sufficient protection of personal data of data subjects. Several of its parts are subject to scrutiny. Subsequently, the attention is given to the legal regulation effective from 25.5.2018, which is a response to the adoption of a Regulation of the European Parliament and of the Council 2016/679 of 27 April 2016 on protection of personal data of natural persons. Even though the original regulation is subjected to a relatively strong criticism, this new regulation does not contain even those guarantees, which are contained by the still effective act. Within this context, the conclusion contains the formulated specific recommendations and proposals to a significantly more effective protection of personal data of data subjects with regard to the used monitoring devices - camera systems.