Ok....

The graphics are very cheesy and the concept is unrealistic. Make it where you patrol in a car, and as you go around you have to look at the cars and see if they are speeding or if they are driving funny. You can pull over anyone, just make sure you pull over the right person. Actually, look up GTA LSPDFR. It is a great example that you should get some ideas from. Ive been looking for a realistic cop simulator app for a while, and this one does have some potential. Please follow my advice, and follow it well!

AstroCriep9000 about Traffic Cop Simulator 3D, v3.0.3