[header] How to treat police stops [title] Know when an officer has the right to stop you. [step] Any type of moving violation (which includes driving an unsafe vehicle) is considered legal grounds for a stop. Additionally, an officer can follow you and wait for you to commit a traffic violation. 
[title] Understand when an officer does not have the right to stop you. [step] A police officer cannot pull you over because of your age, race, or sex.