just like much of the art in art museums and many of the dating profiles on tinder, there are also tons of faked religious artifacts.
i once met a woman who ran a museum of hair in independence missouri, who claimed to have both some of elvis presley's hair and a piece of the true cross.
did you know that even if people know what they are taking is a placebo, if they go through the whole ritual of going to the doctor, being perscribed meds, taking them etc, they still get better?
even while fascinated by untangling what is real and fake, at some point i also think that it just doesn't matter. if the bones of st. james the less aren't actually in rome, that doesn't negate the thousands and thousands of faithful who pilgrammaged to see them. the faith is real, the community is real, the bones have power whoever they belong to.