Say a guy decided to just for the fuck of it , start his own gambling den in his basement, in the privacy of his own home. He could simply call it "Card Night" and have a weekly game night with his "Buddies".
How would the feds or LE even know if he was running an illegal casino?
This is a serious question. I mean if its just a "Card game" then how is it against the law no matter how much people are playing for? Plenty of people have card games all the time at their house.
If it's a "quarter/half game", where players bring a 6-pack or some cheap booze,and they order a couple pizzas,nobody cares.
If you're running a $5,000 buy-in and raking the pot,you might attract some LE attention if it's been running for a while,but 99% of the time it's either from a loudmouth or a snitch.
The smart move is to take care of your buddy,the cop.
If you aren't connected to at least one or two cops,you have no business being in the gambling trade.
If you live in an area that still has connected guys,you can go that route, but you're going to kick up a ridiculous amount of money.