DEA Drug Enforcement Administration was established by President Richard Nixon in July 1973. MICHELE M. LEONHART is an Administrator of Drug Enforcement Administration in U.S. Department of Justice. It has around 5,000 Special Agents. The Bureau of Narcotics and Dangerous Drugs (BNDD), the Office of Drug Abuse Law Enforcement (ODALE) are combined to form DEA. The Special Operations Division (SOD) has a private unit within the DEA.