Since nobody here is an experienced money launderer, we will never know whole process. If casinos are involved in money laundering, then both casino and money owner are involved. I think they have low risk. But, I dont think that casinos are good for money laundering. How I see the process, a person place bets, losses money, then win jackpot and withdraw and the money becomes more or less clean. An accidental gambler can win that jackpot either. And that is the moment when problem starts.
Yeah, a big uncertainty in scheme to use casinos for money laundry is always exist as one may end with tainted assets that were put into casino's cleaning "drum" by others. So it may require the use of many casinos to get the positive result thus the whole procedure is not the cost effective and one lose up to 50%
or even more . Probably only hackers could treat oneself to such unalloyed luxury as to get half of their initial input.
They are smart for knowing what are those things that can help them to easily wash their stolen money so that they will not get caught and could able to pull out those money without getting traced.
For sure that there are several casino has been used for this scheme that's why those questionable casino which didn't implement anything to combat such actions like that may provably be used by those criminal. I guess this is the reason on why the casino would ask a KYC for people win a huge amount from them so that they can verify the user is clean and they are away to be exploited by those cyber criminals.