The focus of policing has shifted over the years. For example, there used to be an emphasis on the enforcement of the law, not prevention of crime. If someone committed a crime, they would be sought out and punished. Now, police feel it's their job to help prevent crime by being more involved in preventing crimes that MIGHT be happening. Police get involved in "suspicious activity" and the such to prevent crime when it really just victimizes black and Latino kids like in the book. #so345