The expert public is presented with an article summarizing the results of security research that the author has conducted in recent years for the Ministry of the Interior of the Czech Republic and the Police of the Czech Republic in the area of the so-called Extended Confiscation of the Offender's Property. It points to the outputs in the form of a certified methodology created for officers acting for a police authority in the area of application of the criminalistic-tactical method of Financial Investigation, including the created SW tool for calculating the gross disparity in the offender's property to his legal income. At the same time, in this context, it points to the application by the courts of a relatively new protective measure: Seizure of Part of Property, pursuant to the provisions of Section 102 of the Criminal Code.