Is anyone here a police officer or know about this kind of stuff?

[Killarney]

I'm writing a novel and in one scene a police officer is in his patrol car. I want the police radio to let him know that there is a disturbance (a fight) at a business down the street. However, I have no clue how this would actually be said on a police radio. Does the speaker ask for a specific car? Is there a code number or code name for this (a fight at a place of business)? Would they then give the address and then the police officer would say he's on his way? I want it to be accurate.

Thanks. :)