Former paralegal here. Case was being held in a state district court. Chauvin has a period of time to appeal the verdict through the state court of appeals. The court then must hear the appeal. If they don't overturn it, Chauvin can apply for certiorari at the state supreme court. Supreme Court appeals are not guaranteed however. His last shot to appeal if cert is denied by the state supreme court is to then apply for certiorari at scotus. The appellate courts have the ability to declare a mistrial and remand the decision back to the district court and can order the court to proceed in accordance with the appellate ruling, which, among other things, can include throwing out the jury verdicts as tainted and make the district judge rule as both the trier of law and fact in the matter. This is not legal advice. Check with a licensed attorney in the appropriate jurisdiction for best results.