The Grand Chamber of the Constitutional Court of the Slovak Republic recognized as non-constitutional laws that allow mobile operators to track users and save information about calls and communication, and the police to access this data.
Laws are contrary to the constitutional rights to privacy and personal data and have lost their force.

According to the now invalid provisions, electronic communications providers were required to store information on traffic and calls for six or twelve months, depending on the type of data. Includes data on unsuccessful phone calls. The police could get the necessary information without notifying the citizen.
Every citizen of Slovakia served as an object of careful observation, regardless of honesty or innocence. One of the initiators of the proceedings with the laws in terms of the constitution noted that these laws led to years of constant violations of privacy.
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In April 2014, the European Court of Justice
declared the invalidity of the directive on data storage and customer negotiations, which obliges telecom operators to store data on negotiations of EU citizens for two years. After this decision, the massive collection, storage and processing of data on citizens of Slovakia were suspended, and now prohibited.