In the Philippines, amparo and habeas data are prerogative writs to supplement the inefficacy of the writ of habeas corpus (Rule 102, Revised Rules of Court). Amparo means protection, while habeas data is access to information. Both writs were conceived to solve the extensive Philippine extrajudicial killings and forced disappearances since 1999.
On July 16, 2007, Philippine Chief Justice Reynato Puno and Justice Adolfo Azcuna officially declared the legal conception of the Philippine Writ of Amparo – "Recurso de Amparo", at the historic Manila Hotel National Summit on Extrajudicial Killings and Enforced Disappearances.
On August 25, 2007, Reynato Puno declared the legal conception of amparo's twin, the supplemental Philippine Habeas Data. Puno by judicial fiat proclaimed the legal birth of these twin peremptory writs on October, 2007, as his legacy to the Filipino nation. Puno admitted the inefficacy of Habeas Corpus, under Rule 102, Rules of Court, since government officers repeatedly failed to produce the body upon mere submission of the defense of alibi.
By invoking the truth, Habeas Data will not only compel military and government agents to release information about the desaparecidos but require access to military and police files. Reynato Puno's writ of amparo – Spanish for protection—will bar military officers in judicial proceedings to issue denial answers regarding petitions on disappearances or extrajudicial executions, which were legally permitted in Habeas corpus proceedings.