Or just a modern art?
Or just a modern art?
The problem is not that a casino "makes a lot of money" suddenly. Sure, great for them. But then if that money starts to percolate into the other jurisdictions. For example the casino orders dry cleaning from a foreign company. The casino wire transfers the money, the cleaners send the receipts, but no actual cleaning happens (obviously).
And this is where banks come in, because they provide the wire transfer. And they are mandated to flag extremely successful dry cleaners and other providers, report it to various government agencies.
And ... it turns out that somehow they can't even do plausible deniability properly.
The transaction that happens when the buyer then sells it for twice the amount to an offshore holding trust without any operational business associated with it is money laundering.
But in the Real World™, most money-laundering investigations are done by law firms after a theft of funds is discovered.
The frauds are typically insider-assisted procurement fraud where some known list of initial illegal transactions are identified and then attempts are make to recover it from intermediate and/or ultimate beneficiaries.
The bank accounts of a long list of intermediaries are subpeonaed and the transactions traced.
The entire point of money-laundering is to make the trail go cold.
The 'contra' bank account entries keeps the trail very, very alive.
So no. Its not modern art. It's money laundering.