Extrajudicial Killings and Forced Disappearances in the Philippines. Forced disappearance, Extrajudicial punishment, Summary execution, Karapatan, International Convention for the Protection of All Persons from Enforced Disappearance, International Coalition against Enforced Disappearances, Communist Party of the Philippines, New People's Army, Armed Forces of the Philippines, Writ of Amparo and Habeas Data (Philippines), Habeas corpus