WATCH: PNP-FEO officer testifies on Sara Duterte, husband’s 50+ firearms. MANILA, Philippines – PMaj. Joericson Sangalang of the Philippine National Police Firearms and Explosives Office (PNP-FEO) takes his oath as a prosecution witness in Article II of Vice President Sara Duterte’s impeachment trial. His testimony focuses on more than 50 firearms owned by Duterte and her husband, lawyer Manases Carpio, with a total value of.