CSI: Cambodia

A girls parents went mad. The crime scene is a gruesome one, but without death. The parents, who normally sell noodles in the village, attacked their daughter. Bit off her thumbs and the tip of her nose so that they could suck her blood. Neighbors heard the daughters screams and rescued her.

Its a simple case really. They were just possessed by a demon. Leave the daughter with other villagers for a little bit, until the parents can be exorcised. Besides, local law doesn't even know what to charge the parents with. (In the US that unknown law is child abuse.)