I hope the investigators are examining the MIC (printer identification dots) on those ballots.
Good idea. I've been looking into this some myself. One of the articles I read said it can only be done with color printers, but who knows. I've also read some parts of the country may even allow people to print off their own ballots, which sounds crazy but unfortunately wouldn't surprise me at this point.
What would be interesting, would be if someone from these contested precincts who may have received a ballot in the mail, but didn't use it, showed us what it looked like.