Title
Supreme Court
Calilung vs. Datumanong
Case
G.R. No. 160869
Decision Date
May 11, 2007
Petitioner challenges RA 9225, alleging it permits unconstitutional dual allegiance. Court dismisses, ruling it allows dual citizenship, not allegiance, deferring to Congress for future legislation.

Case Digest (G.R. No. 160869)
Expanded Legal Reasoning Model

Facts:

  • Nature and Parties
    • Petitioner: Hector Gumangan Calilung, member of Advocates and Adherents of Social Justice for School Teachers and Allied Workers (AASJS), filed an original petition for prohibition under Rule 65 of the 1997 Rules of Civil Procedure.
    • Respondent: Hon. Simeon Datumanong, Secretary of Justice, charged with implementing laws on citizenship.
  • Republic Act No. 9225 (“Citizenship Retention and Reacquisition Act of 2003”)
    • Key Provisions
      • Section 2 declares State policy that Filipinos acquiring foreign citizenship shall be deemed not to have lost Philippine citizenship.
      • Section 3 allows natural-born Filipinos who lost citizenship by foreign naturalization to reacquire it upon taking an oath of allegiance; newly naturalized Filipinos retain Philippine citizenship upon oath.
      • Section 4 grants derivative citizenship to minor children of those who reacquire citizenship.
      • Section 5 affirms civil and political rights subject to qualifications on suffrage, candidacy, appointment, professional practice, and military service.
      • Sections 6–8 contain separability, repealing, and effectivity clauses.
    • Legislative Deliberations
      • Debate focused on the constitutional ban on dual allegiance (Sec. 5, Art. IV, 1987 Constitution) and whether RA 9225 permits it.
      • Proponents insisted the statute restores dual citizenship, not dual allegiance, by requiring an oath that implicitly renounces foreign allegiance, thus transferring enforcement to the foreign state.
  • Grounds of the Petition
    • Petitioner’s Argument: RA 9225 cheapens citizenship and allows dual allegiance inimical to national interest.
    • Office of the Solicitor General’s Argument: The oath in Section 3 effects renunciation of foreign allegiance, and RA 9225 does not contravene the constitutional prohibition on dual allegiance.

Issues:

  • Constitutionality
    • Whether RA 9225 violates Section 5, Article IV of the 1987 Constitution by permitting dual allegiance.
  • Jurisdiction
    • Whether the Supreme Court may adjudicate the issue of dual allegiance in the absence of an enabling law.

Ruling:

  • (Subscriber-Only)

Ratio:

  • (Subscriber-Only)

Doctrine:

  • (Subscriber-Only)

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