are these bones human?
Images courtesy of: Smithsonian National Museum of Natural History

...these bones are not human.

Sometimes, the distinctive adaptations in bone are tricky to spot.  This clawless hind paw of a black bear looks somewhat like a human foot.

How do cases like this come to the attention of the police?  When hunters skin bears, they remove the claws with the pelt and leave the feet in the woods, to be found later by hikers or family pets.