Mine are on file with the Feds
at least because of requirements to study law and a security clearance investigation for a job.
…which was actually a bit of a challenge for the authorities. My fingerprints have visible ridges, but they’re apparently much shallower than normal. The first time they tried taking my prints, they got black blobs. Finally got them by using less ink and pressure.
For the security clearance, I had to go to a local FBI field office, where they used OPTICAL scanners. In the first attempt, the images captured were rejected. Ditto a second, at which point the supervisory agent asked if I’d been altering my fingerprints to facilitate criminal activities.
I stammered a denial, and they tried again- using less pressure- getting usable prints.