Title
Valles vs. Commission on Elections
Case
G.R. No. 137000
Decision Date
Aug 9, 2000
Rosalind Ybasco Lopez, a dual citizen, faced disqualification petitions over her Filipino citizenship. The Supreme Court ruled her qualified, affirming her citizenship by jus sanguinis and rejecting claims of renunciation through foreign documents.

Case Summary (G.R. No. 200274)

Factual Background

Rosalind Ybasco Lopez was born to a Filipino father, Telesforo Ybasco, and an Australian mother, Theresa Marquez. She came to the Philippines in 1949, married a Filipino in 1952, participated continuously in Philippine elections, and served in local office, including election as governor of Davao Oriental in 1992. Documents show that she held an Australian passport in 1988 and registered with Filipino immigration as an Australian national in 1988, but she executed a Declaration of Renunciation of Australian citizenship on January 15, 1992, which was registered in Australia in May 1992 and followed by cancellation of her Australian passport on February 11, 1992.

Trial and Administrative Proceedings

A series of administrative proceedings challenged private respondent’s eligibility on citizenship grounds. In 1992 a quo warranto petition (EPC No. 92-54) alleging Australian citizenship was dismissed by the COMELEC for lack of proof that she renounced Philippine citizenship. In 1995 a similar petition (SPA No. 95-066) again was dismissed. In 1998 petitioner Valles filed SPA No. 98-336 contesting her 1998 candidacy; the COMELEC First Division dismissed the petition on July 17, 1998 for lack of new evidence and reliance on the prior resolutions, and the COMELEC en banc denied reconsideration on January 15, 1999.

The Parties’ Contentions

Petitioner Cirilo R. Valles contended that private respondent had effectively renounced Philippine citizenship by registering as an Australian national with the Bureau of Immigration, by applying for an Immigrant Certificate of Residence, and by possessing an Australian passport; he argued that these acts forfeited Philippine citizenship and that the subsequent declaration of renunciation of Australian citizenship did not automatically restore Philippine citizenship without formal repatriation under Republic Act 8171. He further asserted that the COMELEC erred in applying res judicata and that prior administrative findings on citizenship do not bind subsequent proceedings per Moy Ya Lim Yao v. Commissioner of Immigration. Rosalind Ybasco Lopez and the Commission on Elections maintained that she was a Filipino by virtue of the principle of jus sanguinis because her father was Filipino; that possession of foreign documents and registration did not constitute an express renunciation under Commonwealth Act No. 63; that she effectively terminated any foreign citizenship by a formal Declaration of Renunciation registered with Australian authorities and by cancellation of her Australian passport; and that the prior COMELEC resolutions and lack of new evidence justified dismissal.

Legal Issues Presented

The principal legal questions were whether private respondent had lost Philippine citizenship by acts alleged to constitute renunciation or acquisition of foreign nationality; whether her subsequent acts restored or established Philippine citizenship; whether dual citizenship, if present, disqualified her under Section 40(d) of Republic Act No. 7160; and whether the prior COMELEC resolutions constituted a binding or persuasive basis under the doctrine of res judicata or its exceptions.

Ruling and Disposition

The Court dismissed the petition and affirmed the COMELEC Resolutions dated July 17, 1998 and January 15, 1999 in SPA No. 98-336. The Court adjudged Rosalind Ybasco Lopez qualified to run for governor of Davao Oriental. No pronouncement was made as to costs.

Legal Basis and Reasoning

The Court applied the principle of jus sanguinis, as preserved in Philippine organic laws and the 1987 Constitution, to conclude that private respondent was a Filipino by birth because of her Filipino father. The Court held that mere possession of an alien certificate of registration or a foreign passport, and registration with foreign immigration, do not amount to an express renunciation required under Commonwealth Act No. 63. The Court relied on precedent, notably Aznar v. COMELEC and Mercado v. Manzano (G.R. No. 135083, May 26, 1999), to rule that those acts are assertions of foreign nationality but do not effectuate loss of Philippine citizenship absent an explicit renunciation. The Court found that private respondent had executed an effective Declaration of Renunciation of Australian citizenship on January 15, 1992, which was registered and followed by cancellation of her Australian passport, and that she elected Philippine citizenship when she filed her certificate of candidacy, an act the Court treated as an oath under which a candidate declares Philippine citizenship and thereby renounces foreign allegiance. Accordingly, any prior dual citizenship did not operate as a disqualification under R.A. No. 7160, Sec. 40(d), because the Court construed the statutory disqualification to reach dual allegiance, not mere dual nationality, following Mercado v. Manzano.

Application of the Res Judicata and Precedent Principles

The Court acknowledged the general rule that questions of citizenship are not strictly preclusive, citing Moy Ya Lim Yao, but recognized the Burca exception permitting reliance

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