Do you have proof of insurance?
Let me see your registration.
Do you have any idea how fast you were going?
Does this thing have a speedometer? (Sarcastic)
Did you know you were going forty miles per hour in a thirty-mile-an-hour zone?
Where's the fire, buddy? (Informal)
If you are hurrying to a fire, where is it?
Where's the fire, lady? (informal)
Do you know why I stopped you?
I'm just going to give you a warning this time.
I'll let you off with a warning this time. (=exempt)
I'll let you go this time, but don't let it happen again.
If ever I catch you again, I'm taking you in. Taking you in = taking you to the police station
I'm taking you downtown. Downtown = police headquarters