Created in 1918, the Petrograd-Leningrad-St. Petersburg criminal investigation department has been waging a merciless fight against crime for 90 years from the first days of its existence. Vivid episodes of this confrontation, telling about the history of solving high-profile criminal cases, are included in this collection. You will learn: How the gangs of the legendary Lenka Panteleev, Chugun and Vanka Belka were defeated. How detectives follow the trail of sexual maniacs and serial killers. How they work “undercover” » Criminal Investigation Department employees. How they catch robbers and raiders red-handed. Read about this and much more in the book “Criminal Investigation. Petrograd - Leningrad - Petersburg."