If you are found guilty of a crime, you can appeal to a higher court. You can appeal to this higher court against the decision of the first appeal court, but only if the higher court says you can. The higher court, which is either the High Court or the Court of Appeal, will only let you appeal if they think the case is very important to everyone, or if they think something has gone wrong with the case and it needs to be looked at again. You need the court's permission to make a second appeal, and they will only give you permission if one of these conditions is met.