Memoirs of A.V. Gerasimov - the head of the political police in Russia from 1906 to 1908. The book tells about the struggle of the security department with the subversive actions of anarchists, Socialist Revolutionaries, Social Democrats. The new coverage receives the role of Azef in the prevention of terrorist acts directed by the Social Revolutionaries against the person of the tsar and the largest dignitaries of Russia.