If you went to law school, you likely remember that hazy, confusing time during the first semester when nothing makes sense and when it feels like you’re trying to study and learn a new language all at once. This is around the time first year students learn about claim preclusion and issue preclusion. Your brain probably fogged over and you thought, "wha?" Luckily, it's one of those things that in practice makes perfect sense.
This is an issue preclusion case. Issue preclusion, or collateral estoppel, is part of the legal doctrine that allows a party to litigate a matter once. This generally pops up in civil cases, but sometimes there’s cross-over into criminal cases, as you’ll see here. The point is that a party doesn’t get to keep litigating the same thing over and over if generally all the moving pieces to the matter are the same.