KORONADAL CITY - Police arrested six persons believed to be involved in illegal drug trade here andinPolomolok, South Cotabato, police said today.Quoting reports from Polomolok PNP,Senior Supt. Jose Biones Jr, South Cotabato police director, identified the suspects asRashid Jailon alias Jimboy, 42, a van dispatcher,Ferdinand Pajigal, 48, passenger vandriver and resident of BarangayLabangal, General Santos City, Sahabudin Mamadra, 25 and Henjie Chamal, 39, both residents of Purok 5, Barangay Rubber, Polomolok, South Cotabato.