This thesis is devoted to interrogation, detection of lies and tactics of overcoming them. Large part of this work is devoted to ordination of findings of criminology and forensic psychology on this issue. These findings are complemented by practical examples. Important part of this thesis consists of an analysis of real interrogation with a demonstration of possible practical applications of the lie detection techniques and the tactics of overcoming false testimony. The introductory chapter of the thesis is focused on general theoretical analysis of interrogation, with an emphasis on the legal side of things. Very important part of the process of overcoming false testimony is the lie itself, to which the second chapter is devoted. The impa...