In April 2014, the Slovak Constitutional Court preliminary suspended effectiveness of the Slovak implementation of Data Retention Directive and accepted the case for the further review.[54][55] In April 2015 Constitutional court decided that some parts of Slovak laws implementing DR Directive are not in compliance with Slovak constitution and Convention for the Protection of Human Rights and Fundamental Freedoms.[56] According to now invalid provisions of the Electronic Communications Act, the providers of electronic communications were obliged to store traffic data, localization data and data about the communicating parties for a period of 6 months (in the case Internet, email or VoIP communication) or for a period of 12 months (in case of other communication).[57]