Koper, Radosław. “Irregularly Obtainment of Evidence (article 168a CCP) in the Aspect of Exclusion of Freedom Expression of Interrogated”. Scientific Journal of Bielsko-Biala School of Finance and Law 27, no. 1 (March 31, 2023): 38–44. Accessed July 3, 2024. https://asej.eu/index.php/asej/article/view/699.