Minor stole my camera can I call authorities to get it back?

[Ultraman]

Of course you can call the police and report a theft and expect them to track down your camera. Be sure to show them the evidence you've collected and give them her address. Having the receipt for the camera will go a long way to prove your case, the serial number even better but I doubt you wrote that down. Her whole family might lie to keep her out of trouble, or they might not and then you're good. If the police do nothing you can still file a civil suit, with the help of your parents, and perhaps a lawyer, to obtain justice legally. But if it were me, I'd drive over there and confront her and get my fucking camera back now.