They are respectfully called “sledaki”, and it doesn’t matter what time they live in or what the name of the organization in which they serve is called. Captain Minin is trying to understand the reason for the suicide of his friend and colleague, senior investigator Zhogin is investigating a case of a brutal murder, traces of a crime led back into the past by the investigator for especially important cases Zinin, former “important” Danilov is solving the mystery of the Sarmatian gold... In his new book the author lifts the veil over an activity hitherto unknown and mysterious, since it was deliberately hidden from the majority of the population. He talks about colleagues - friends and comrades who are no longer with us, and dedicates these works to Investigator's Day, a holiday recently approved by the Russian Government.