PAGADIAN CITY, Zamboanga del Sur – An alleged notorious drug pusher was arrested in a buy-bust operation conducted by the Philippine Drug Enforcement Agency (PDEA) along Calle Imbornal, Barangay Sta. Catalina, in Zamboanga City on Tuesday night. The PDEA Zamboanga City Office led other law enforcement units during the operation launched at around 8:10 p.m.