High Quality Content by WIKIPEDIA articles! The Office of Professional Responsibility (OPR) is part of the United States Department of Justice (DOJ) responsible for investigating attorneys employed by the DOJ who have been accused of misconduct or crimes in their professional functions. The OPR promulgates independent standards of ethical and criminal conduct for DOJ attorneys, while the DOJ`s Office of the Inspector General (OIG) has jurisdiction of non-attorney DOJ employees. Since 2009, the OPR has been headed by Mary Patrice Brown.