There are print markers in fingerprints that are easy to identify too. In the event someone's full print now bears a big scar. There are thumb scanners in some police forces now.
If an officer wants to run someone's ID they just have that person put their thumb on a scanner and it runs that print through the system.
The technology law enforcement has at their disposal is very capable now of making law enforcement easier.
They have scanners in police cars where I'm from that can run a car's ID just as it runs down the road and in traffic. Pulls up everything about the registered owner.
I drove by a speed trap once where this state trooper was hiding waiting to catch speeders. There was a red light just half a block up the road from him. I was in the right hand lane and I see him in the rear view pulling out to go into the left. He has his lights on, no siren. Cars are pulling to the right thinking he's after them. But everyone he was behind had been stopped in a row at that red light. Sure enough he pulls this little black car that was near the front.
I guess their scanning can run multiple cars and give ID and tag number of offenders even when they're sitting still. Wild stuff.
Like they say, you can't get away with anything now a days