Looking for a standalone police/emergency script

Basically, I am making a menu-based server and looking for a police/emergency services script or menu at players can clock in and out and get dispatched. Also if anyone knows good standalone scripts please add them too. Thanks for the help.

What functions exactly should the script have?
So I understand:
Go on Duty
Go off Duty
And what do you mean get dispatched.
If you want a whole dispatching system, how should it be triggered? Does the message have to be done manually? You have a system where dispatched runs.
A little more detail please, thank you ;D

Yea sure, so I am looking for more of an automatic dispatch. Basically when a player does /911 it would attach the closest player with the role of police, etc. let me know if you need more info. Kinda look for something at ExtraLife RP use.