With low clearance rates, there must be an emphasis, too, on “making sure that we do a much better job, on the front end, of evidence collection, making sure that we’re getting videotape evidence, doing aggressive witness canvasses, forming a better relationship between the detectives and beat officers who really know best what’s going on in those neighborhoods. All those little things add up to a more effective investigation,” said Lightfoot, who at one point served as head of the Chicago Police Board, which handled the most serious disciplinary cases involving Chicago cops. (John Byrne)