According to Interpol, ‘Russian mafia’ currently involves some 160 thousand people.

To compare: Italian Cosa Nostra has only 70 thousand members, while Japanese Yakuza even less – some 37 thousand fighters. It’s necessary, however, to make a linguistic comment: many European languages do not distinguish such meanings as “Russian” and “Originating from Russia”, and in the post-Soviet era they call “Russians” all natives of the former USSR republics: Ukrainians, Georgians, Uzbeks, etc.
Overall, some 360 separate organized criminal groups whose main language is Russian operate in Europe. Unfortunately, Western sources often don’t distinguish them by nationality, but instead categorize Russian-speaking criminals by the country of operations and specialty.


Italy
Such a law exists in Italy. For example, a home in Sicilian town of Corleone, previously belonging to the former Cosa Nostra boss Salvatore ‘Toto’ Riina, has been converted to an agricultural college. However a ‘Russian’ criminal trace has been found here as well. According to the sources, 6 organized criminal groups operate here; their members are natives of Ingushetia, Chechnya, and the Urals. They are mostly based in Italian resort towns, especially in Rimini, and specialize in drug dealing, robberies, and smuggling weapons. Many crimes are performed together with Italian mafia.

https://en.crimerussia.com/organize...om-multinationality-to-cross-borderness/