During police chases, cops will use codes such as "10-75" or "Code 6 Driver". Here are the meanings of these terms:
CODE - MEANING Code 3 - In pursuit of high speed driver. Code 6 - High speed driver who refuses to pull over for police. 10-33 - Is in a need for more backup units. 10-39 - Police will attempt to spin your car. 10-59 - Police are going to attempt to pin you against a wall. 10-73 - This is a roadblock. 10-75 - Police are going to pull in front of your car and slam on the breaks (very affective with Corvettes). Setting up a quadrant - Police are going to set up in a certain direction to find you. Taking out a P.C. - When you have "killed" a patrol car.