Offshore Money Laundering

There's a bunch of money hidden offshore.

Just like banks help dictators to hide their money(and banks do all they can to avoid fraud, yes yes yes)

Rich people offshore money there

Offshore buyers sequestering (or hiding) money.

Any US presidential candidates implicated? Particularly Trump or Clinton? Or is this primarily used by non-US money launderers / tax-evaders?

You can simply re-wire money between different jurisdictions. Lets say you send money to Phillipines -> Gibraltar -> Caymans -> Russia -> UK -> Panama -> SwitzerlandBecause each country is on different continent, following different rules and laws, accessing data is extremely hard.Many countries from different geographical locations wont be happy to give access to banking information.Before they can track the money, it will be deposited to shell company. With amounts l

Keep dreaming..the corruption and dirty money from 3rd party countries is business for both the US and the UK along with Switzerland and some small EU countries. I believe they consider it leverage as well but that's another story. If something will be done that will be to move more dirty money from banana coutries to places like Dellaware or the City of London.

There are entities other than the government that you might want to hide money from.

In what jurisdiction do rich people not have access to webs of shell companies to hide their transactions through?

Nowadays you cannot even digitally transfer 15k EUR from your own bank account to your own brokerage without answering invasive questions, 15k EUR which had been taxed at least once already. Oligarchs, dictators, high figure politicians, and white collar criminals don't seem to have problems with money transfers though.