Series of anonymous (anonymity can be achieved with various means, some more legal than others) shell companies used to launder money aren't exactly unheard of.

Series of anonymous (anonymity can be achieved with various means, some more legal than others) shell companies used to launder money aren't exactly unheard of. There's very little courts can do, besides issuing countless of subpoenas and search warrants, which has been the standard way of handling criminal investigations for decades now. Here's a telephony related example: http://www.nytimes.com/2015/11/29/magazine/the-serial-swatter.html http://www.nytimes.com/2015/11/29/magazine/the-serial-swatte... ctrl+f subpoenas