G.R. No. 132244 - Angat vs. Republic

Petitioner Gerardo Angat, formerly a natural-born Filipino citizen, lost his Philippine citizenship by naturalization in the United States of America.
Residing in Marikina City at No. 69 New York Street, Provident Village, he filed a petition on March 11, 1996, before the RTC of Marikina City, Branch 272, seeking to reacquire Philippine citizenship.
The petition was filed under multiple statutory provisions, notably Commonwealth Act No. 63, Republic Act No. 965, and Republic Act No. 2630, though repatriation pursuant to Republic Act No. 8171 ultimately became central.

The petitioner’s submission included detailed personal data such as his full name (Gerardo Legaspi Angat), present and former residences, date and place of birth (June 22, 1954, Tondo, Manila), trade or profession, and marital status (newly married to Zenaida Lim).
Attached documentary evidence comprised his birth certificate, alien registration, marriage contract, and his latest picture.
He averred compliance with the necessary qualifications and absence of disqualifications (e.g., opposition to organized government, conviction of crimes involving moral turpitude) required under the pertinent laws for repatriation.

The RTC initially received the petition and set an initial hearing on January 27, 1997, after the case was noted on April 30, 1996.
On June 13, 1996, petitioner sought to take the oath of allegiance under R.A. 8171; however, his motion was denied on July 12, 1996.
A subsequent motion for reconsideration on August 13, 1996 led to an order on September 20, 1996, allowing him to take the oath on October 03, 1996.
Following the oath, on October 04, 1996, the RTC issued an order declaring petitioner repatriated and a citizen of the Philippines, with directives to cancel his alien registration and update civil records.

On March 19, 1997, the Office of the Solicitor General (OSG) filed a manifestation and motion contending that the petition should have been filed with the Special Committee on Naturalization.
This committee was created under Presidential Decree No. 725 and later reaffirmed by Administrative Order (AO) No. 285 issued on August 22, 1996, which designated it as the proper forum for processing repatriation under R.A. 8171.
Based on this contention, the RTC, in its order dated September 22, 1997, dismissed the petition for lack of jurisdiction, setting aside its earlier orders.

Republic Act No. 8171, effective from October 23, 1995, provided that repatriation for natural-born Filipinos (and Filipino women who lost citizenship by marriage) was to be effected by taking an oath of allegiance and undergoing a designated registration process.
The procedural implementation was assigned to the Special Committee on Naturalization, as evidenced by LOI No. 270 (and subsequent amendments) and AO No. 285.
Despite the petitioner’s contention that his petition had a vested right because it was filed before the committee’s reactivation and the issuance of AO 285, the court focused on the designated forum and the retroactive implications of the administrative order.

Did the RTC have jurisdiction to hear the petition for repatriation when the proper forum under R.A. 8171 was the Special Committee on Naturalization, as mandated by AO No. 285?
Can a petition filed before the issuance of AO 285 still be entertained by the RTC, or must it be refiled with the proper body?

Is it permissible to give retroactive effect to AO No. 285 so as to nullify the RTC’s prior orders allowing the petitioner to take the oath and be declared repatriated?
Does the filing date of the petition confer any vested right on the petitioner against a subsequent change in the prescribed venue?

If the petitioner had already taken the oath of allegiance and been declared repatriated by the RTC, does such order sustain a vested right for citizenship?
To what extent can subsequent jurisdictional rulings undo or affect the earlier determinations made by the RTC?