Hassan Aden is the former Chief of Police of the Greenville Police Department in Greenville, North Carolina. Hassan Aden serves as the federal monitor overseeing the consent decree monitoring team Cleveland and is the deputy monitor in the Baltimore consent decree. Until late 2015, he was the Director of the Research and Programs for the International Association of Chiefs of Police (IACP), where he directly oversaw the day-to-day management of operational programs and research projects aimed at advancing professional police services. He served for 26 years at the Alexandria Police Department in Alexandria, Virginia, rising to the rank of Deputy Chief until his retirement in 2012.