This is not a difficult problem. My last position had me take a drug test. I had to go to an actual building, show my ID, and the place/results were logged. They also did a background check, which presumably would have flagged any issues. I think I emailed a copy of my ID. One interviewer even flew me out for a day. They're making an issue out of nothing, and it's not clear why.
> and maybe also avoid hiring fully remote employees.
Background checks won’t detect fraudulent documents used to initiate the check. In my experience you need to provide typical identity information (passport, insurance number, address, etc.). If the applicant has stolen a legitimate identity, they will simply continue to provide documents consistent with that identity.
In-person interviews are the most robust solution to the problem.
> and maybe also avoid hiring fully remote employees.
There it is.