Wanted System

So, i was making my gamemode (heavily modifeid darkrp) and i was looking for a hud and i saw the watch_dogs DarkRP hud, and i thought to my self how call would it be to have a system were a police officer can go /wanted <level> <player name> <reason> and so when an officer see’s him it would have wanted and level above their head and they can tell if they need S.W.A.T or not, but then i thought how would i go about doing that? And thus i am here… any sugestions on how this could be made possible