Harry hands an envelope to Joe, the con man, saying it contains $65,000. The largest bill in circulation in 1974 was a hundred dollars. That amount of money would be 650 bills which is equivalent to six and a half packets of a hundred bills each. A packet of a hundred bills is almost half an inch thick making the entire stack a little over three inches thick. The envelope is about half an inch thick and could not possibly hold that amount of money.
In the second payoff the mark pulls out a skinny envelope no more than a quarter inch thick claiming it contains $45,000. The largest bill in circulation in 1974 was the hundred dollar bill. That amount of money would take 450 bills which would be about two inches thick.
In the payoff in the hotel room, the mark pulls out a skinny envelope no more than a quarter inch thick claiming it contains $65,000. The largest bill in circulation in 1974 was the hundred dollar bill. That amount of money would take 650 bills which would be about three inches thick. In fact, Joe riffles through the money revealing that contains no more than a hundred bills, if even that.
Steve has no grounds on which to arrest the con men because he has no proof the deal is not legitimate. At that point, the con men have only taken the money, but the deal could be legitimate. Steve should have waited until they actually absconded with the money before arresting them.
When at the table in the restaurant Cindy (Lynnette Mettey) has to go to the "powder room" and hands Harry (Michael Strong) a set of car keys to assure him she's not going to leave without him. But the keys are clearly Ford keys and the red convertible the cons were driving was a Dodge Dart GTS manufactured by Chrysler.
When at the table in the restaurant, Harry Maguire receives the news that he would have to pay for the meals, but the waiter simply lets him get up, leave the table and walk out the restaurant without paying the check.
A script oversight occurs after Cindy is tipped off by the valet and the scammers give the brush off to Anderson and retreat to their room preparing to flee. But Five-O convinces Anderson to try and consummate the deal. This fails to make sense, as how would Five-O or Anderson determine which room Connors and his gang were occupying.
The con man is supposed to get half of the $200,000 for the sale of the diamonds in New York. The other half goes to the man brokering the sale. If he takes the $100,000 offered him in Hawaii, that means he is cheating his partner out of his share. He would be a fool to do that because that is the kind of thing that gets a person murdered.