The reader will be informed on, among others, social background of these groups, including specific social-cultural attributes which they show according to their origin. Moreover, the book offers the comparative analysis of the influence and character of particular groups and analysis on relations between these groups within Russian Federation. This publication represents a significant contribution to Czech research on the organized crime and is suitable for scholarly public interested in security and strategic studies, but also for the fields of criminology, sociology, economy and others. The book is published in Czech language.