It didn't just "pass through his possession", he generated it.Does some of the information appear to have passed through Hunter Biden's possession? Possibly. But that should hardly pass the sniff test in your world, where a conviction still isn't enough to prove guilt if the person has an R after their name.
And can you remind me what crime this is all supposed to have been related to?
Not that it matters, (he's not subject to the same laws we are) but the evidence indicates possible solicitation of prostitution, drugs, influence peddling, possession of and distribution of classified information ...