Without wanting to go 'over the top', eastern european sportsmen have used performance enhancing drugs ever since I can remember, and I go back a long way!
With the collapse of the Soviet Bloc the gangster culture has thrived in these states, and I wouldn't be surprised if they were not involved in not only drugs for cyclists, but for other sports as well.
Kasheshkin is probably to the Russian Mafia what Sinatra was to the American arm of the organisation.
I realise that the drugs problem isn't exclusive to Eastern Europe, but their history indicates that what was once state sponsored, is now the preserve of private enterprise, ie the Mafia.
Mafioso have good lawyers. This how they stay one step ahead of the law.
This character of Kasheshkin's fits the profile and one can see more challenges coming from East Europe than from the West in future.
Depressing isn't it?