Heros wear clothes that dirt can't stick to. Ugly people are always bad guys. Bad guys will make elaborate inventions to kill the good guys, but they will never stick around to see if it works. The bad guy chickens out first. The police are smart.
Undercover cops are too good to be spotted, especially when wearing dark sunglasses.
All police killings are in self-defense. Police chases must include a car going through a plate glass window. Car wheels screech on any corner, even on dirt. After being shot, there is always enough time to escape. The chances of getting into an accident increases proportionally as the car goes slower.