They’re doing a lot, including visiting addresses to see if they are empty lots, office buildings, etc.
I was thinking of doing subtle things like finding the mail-in ballots without folds, folding them, and returning them to the pile. That would “mark” them as possibly legitimate. They’re checking for un-folded mail-ins.
If a mail-in has no folds, it couldn’t fit the envelope, so wasn’t mailed.
How about checking for evidence of DNA along crease to determine fold was done by hand and NOT made by a machine ?
Sounds promising. They said they will be calling some voters to confirm they voted. Before the audit started, the Republicans said they documented thousands of votes from one address.