Let me get this straight?
We play our games on the teamdeath match mode. On that mode, we limit the weapons to weaker weapons and have a team of cops and crooks. There are usually more cops than crooks. Proximity chat is selected and an island is chosen as the "arena". In the beginning of the game, the crooks chill until the cops get their police cars. Once the cops get their police cars, they patrol the area and obey all traffic laws. If they see a crime committed by the crook or get a tip from an "anonymous" caller, they respond with their sirens and use the proper radio communication. At the area, they try to arrest the crook and take him to the jail for around 2-5 minutes or if a firefight escalates, the cops will return fire. Basically, anything can happen that's realistic, there are even sometimes crooked cops.