It is our great pleasure to announce the release of the 100th issue in the series "ZBN Analyses” and "ZBN Commentaries” published by the Department of National Security of the Institute of Political Sciences and International Relations. Dr Arkadiusz Nyzio is the author of the round-number issue. His commentary concerns a highly important matter of surveillance in Poland, seen through the prism of billings, wiretapping, correspondence and personal data control executed by institutions and bodies of home affairs and criminal justice, as well as the special services.

"ZBN Analyses” and "ZBN Commentaries” are regular publications of the faculty and PhD candidates at the Department of National Security, reflecting their ongoing research and main areas of interest. The majority of the texts were published in Polish, although several analyses and commentaries were issued in English. The first text, which was published on the 20th of October, 2015, was titled: The Russian operation in Syria – goals and possible outcomes. It was authored by Professor Marek Czajkowski. From the beginning of 2019 „ZBN Analyses” and „ZBN Commentaries” have been published as pdf files. They are all available at the website of the Department of National Security. Texts in Polish language are available as pdf files, however they are presented at the English-language website by their abstracts.