Not all vehicle stops by police are the same. Some are examples of effective law enforcement. Yet others have lasting, detrimental effects on neighborhoods and individuals. Understanding the difference between these stops is the goal of “Pulled over: How police stops define race and citizenship” by Charles R. Epp, Steven Maynard-Moody and Donald Haider-Markel.Four U.S. Supreme Court cases provide the foundation for police tactics in vehicle stops:U.S. v. Robinson allows a complete search of the person pursuant …