The goal of being part of the police force is simple. You are tasked to deal with petty thefts, the occasional lunatics and battle against the increased crime rate in San Andreas. The department can provide you with basic fire arms and vehicles to do just that.
You can use the GPS to navigate to your nearest Police Department using /gps > Police Department.
When a crime is reported it will display on the screen, you can learn additional information about a crime using your police computer, you can open the computer by pressing Y while stationary in a police vehicle.
In order to arrest players: Go near the people which are marked red on the mini map, go out of the car and press Left ALT key to arrest them. You will receive payout every time you arrest someone. Band up with your friends, more people equals more firepower!