Oakland police are proud of a new Stanford study highlighting the fact that their officers have been arresting less people and crime has not soared as many in law enforcement had feared; it's actually been going down.

But while the study credited police for having a smaller "footprint" in terms of arrests, the authors noted that in terms of racial disparity, police have made "very little progress." In all, police have arrested 21 percent less people in the last six months under a strategy coined "precision policing." Of that number, police arrested 18 percent less African American people and 34 percent less whites.