Harrison says it was some of the best police work of his career, taught him something about himself and about police integrity, and set him on a path to the top of the New Orleans Police Department. It not only got him noticed and promoted to sergeant, but ultimately transferred to Internal Affairs, where he continued to root out corruption in a troubled department with no shortage of in-house targets. That experience, in turn, became a top selling point for him to take over the department as superintendent in 2014, to help steer it through a federal consent decree mandating reforms.