Vasili Mitrokhin describes investigative methods used during anti-Soviet incidents in Sverdlovsk and Serov. On November 7, 1969 anti-Soviet leaflets were distributed in the city of Sverdlovsk. The KGB collected 60 copies. It was determined that the leaflets were made on a portable typewriter of a foreign make using a standard-format paper. It was also estimated based on the content of the leaflets that the author was approximately 17-20 years old. On April 26, 1970 the anonymous leaflets appeared in the city for the second time. They were printed on the same typewriter, but differed in content. The KGB operatives collected 14 copies. Similarly to the first group of leaflets, they feature a signature of the “Executive body of the party ‘Free Russia’.”
On May 1, 1970 identical leaflets were disseminated in the city of Serov. The KGB operatives narrowed down the circle of suspects to 176 students. From local testimonies, they discovered that Uzlov, a student at the Ural Institute of Engineers, had been a member of a youth organization called “Revolutionary Workers’ Party,” which was later renamed to “Free Russia.” Nikolay Shaburov (born 1945) and Victor Pestov (born 1946) were leaders of the “Free Russia.” They designed the text of the leaflets and recruited followers to help distribute the copies. Members of the “Free Russia” were arrested and convicted.