ESX Menu, Police Vehicle Spawning!?

So, I have been on a few servers and they have a police vehicle spawner that is a purple ring you go into it and spawn a police car, how could one copy that to there server, I am in the middle of creating my server and I only have a few issues left to fix! Somebody, please help!

Have you found it? I’m also looking for it

From what ive seen thats something that comes with esx_policejob I can send the file if you would like.