20. What is the Reasoning?

Have you ever wondered why cops touch your car’s tail light after they pull you over? It seems to be one of the many things they do that people seem to always ask about and wonder why. Is it part of the protocol? Is there a deeper meaning? Or are they just checking to make sure it works? Turns out, there are a plethora of reasons as to why police offers do this, and many will have you scratching your head.