City of Durham names Greensboro assistant chief Stephanie Mardis as new police chiefDurham Mayor Leo Williams said the city's new police chief, Stephanie Mardis, arrives at a critical time for DPD as city leaders continue focusing on violence reduction strategies. Durham Mayor Leo Williams said the city's new police chief, Stephanie Mardis, arrives at a critical time for DPD as city leaders continue focusing on violence reduction strategies. On Monday afternoon, the City announced that Stephanie Mardis, the assistant chief in the Greensboro Police Department, has been named Durham's next chief of police. "I congratulate Assistant Chief Stephanie Mardis on being selected to lead the Durham Police Department," Birkhead said. Chief Mardis brings the experience, compassion, and energy that Durham needs in their next police chief.