G.R. No. L-44831. August 27, 1979.
IN THE MATTER OF THE PETITION TO BE ADMITTED A CITIZEN OF THE PHILIPPINES, MARCELINO TIU, petitioner-appellee, vs. REPUBLIC OF THE PHILIPPINES, oppositor-appellant.

FACTS

This case originated from a petition for naturalization filed by Marcelino Tiu under the old Commonwealth Act No. 473. The Court of First Instance of Manila rendered a decision on April 26, 1971, granting his petition. Subsequently, on July 11, 1975, the same court issued an order allowing Tiu to take his oath as a Filipino citizen. The Republic of the Philippines, through the Solicitor General, appealed this decision to the Supreme Court, which gave due course to the appeal on October 27, 1976.
During the pendency of the appeal, a significant development occurred. The Solicitor General filed a motion informing the Court that petitioner-appellee Marcelino Tiu had filed a separate application for naturalization under Presidential Decree authority, specifically pursuant to Letter of Instruction No. 270. This later law provided a different, and reportedly less stringent, administrative pathway to citizenship compared to the judicial process under which the instant case was litigated. The Court granted a suspension of proceedings on December 17, 1976, to await the outcome of this new application.

ISSUE

Whether the appeal filed by the Republic of the Philippines from the lower court’s decision granting Marcelino Tiu’s petition for naturalization should be resolved on its merits.

RULING

No. The Supreme Court dismissed the appeal as moot and academic. The legal logic is grounded in the principle that courts will not determine cases where no actual controversy exists or where the issues have been rendered academic by supervening events. In this case, the Court received a communication from Assistant Solicitor General Lorenzo G. Timbol stating that Marcelino Tiu’s application for naturalization under the presidential decree (SCN No. 008667) had already been granted. The records confirmed that Tiu had taken his oath of allegiance on January 6, 1977, and was issued his certificate of naturalization on March 18, 1977.
Consequently, the very objective of the original judicial petition—to have Marcelino Tiu admitted as a citizen of the Philippines—had already been fully achieved through a separate, valid, and completed administrative proceeding. Any ruling by the Supreme Court on the merits of the appealed decision would have no practical legal effect, as Tiu was already a naturalized citizen. The Court therefore refrained from rendering an adjudication that would serve no purpose, dismissing the appeal on the ground of mootness.