Are you assuming that the records are sealed or have you actually checked? Not all juvenile records are sealed. In any event, the court can verify the records if the judge believes that they are relevant. It sounds like you simply need to establish that they exist, are relevant, and persuade the court to look at them. How do you do that? Here's a thought...how do YOU know about them? The records are sealed. The witnesses to the events and the police reports documenting the events are not. The court reports/records are the results on paper with ink. Think along those lines. Good luck.