So the dna found in prestons pants



Both dna found on them... anyone know what they mean by this comment ?
"not unexpected given the domestic nature of the case"
As others have said, it'll be referring to the fact they were living together and they were his carers. So all their clothes will been gathered up, washed and put away by the suspects, where they might have even been using the same laundry basket, etc. Plus they were the ones dressing him, etc, so it's not impossible that it could have been transferred in an innocuous way (like changing him after putting dirty laundry in the machine).
Technically even if Preston's DNA being present on the 'DNA mix' on the sex toys, that wouldn't be conclusive proof of sexual abuse happening either. For instance, I'm friends with a couple whose young child (at a similar age) managed to get hold of a, uh, personal item that they'd accidentally left out and apparently was
very upset that his horrified parents managed to wrangle it off him before he could proudly show Grandma what he'd found
Now I do think the pair in this case are highly suspect from other details that have come out so far. But the forensic experts can only state what DNA has been found, not explain exactly how it got there.