Ding ding ding! We have a winner.

In order to have something to compare to a database of scans, what do you think a scanner must first produce?

A scan of comparable quality.

Then [I assume] the hired bully is satiated by being given a screen that allows him to decide pass or fail, and accompanying red or green lights and buzzers flash as they either release or kidnap their next victim.

The data is uploaded regardless. Probably to Palantir.

God save us all.