You can get a list of wanted players from the npc in the pd or by just checking scoreboard.
Then you can do /loc (id) to see their precise location with distance how far they are from you.
Problem here is when you're near a criminal (you can see orange/red square on the minimap) you don't know which ID they are until you get close enough, which puts you in danger. If we had the ability to see a list of all criminals, so we can check who they are, where they are, and their recent crimes (whether or not they are armed) it would make our job a lot easier. I usually get in a situation when there's 2 or 3 criminals at the same spot, not only do i not know who they are until i get super close (which means they can just destroy my vehicle and kill me) but i don't know whether or not they're armed and am i supposed to do go for taze-arrest or straight for the kill.
On topic - the stuff above + more rewards (cash) needs to be added for COPS, not some new class or whatever this suggestion is supposed to be.