Title
Liang vs. People
Case
G.R. No. 125865
Decision Date
Mar 26, 2001
ADB economist Jeffrey Liang, a Chinese national, faced defamation charges in the Philippines. The Supreme Court ruled his immunity as an ADB staff member was not absolute, excluding private acts like slander, allowing the case to proceed.

Case Digest (G.R. No. 264746)
Expanded Legal Reasoning Model

Facts:

  • Origin of the Case
  • Two criminal Informations for grave oral defamation were filed in Metropolitan Trial Court (MTC)–Mandaluyong City (Crim. Cases Nos. 53170 & 53171) against Jeffrey Liang, a Chinese national employed as Senior Economist of the Asian Development Bank (ADB), alleging he uttered defamatory words to Joyce V. Cabal on January 28 and 31, 1994.
  • On April 13, 1994, the MTC, acting on a Department of Foreign Affairs (DFA) protocol communication, dismissed the Informations, holding Liang entitled to immunity as an ADB staff member.
  • Proceedings Below
  • The People filed a petition for certiorari and mandamus in the Regional Trial Court (RTC)–Pasig City, Branch 160 (SCA No. 743), which annulled the MTC’s dismissal and reinstated the cases.
  • Liang petitioned the Supreme Court for review on certiorari. On January 28, 2000, the Court denied his petition, ruling that ADB staff immunity is limited to official acts and does not cover slander.
  • Motion for Reconsideration
  • Liang (and the intervening DFA) advanced six grounds, including: (a) DFA’s immunity determination is a conclusive political question; (b) immunity of international organizations and staff is absolute; (c) immunity extends to all ADB staff; (d) due process was afforded complainant; (e) the January 28, 2000 Decision prejudged merits; (f) Vienna Convention on Diplomatic Relations is inapplicable.
  • The Supreme Court heard oral arguments on October 18, 2000, received memoranda, and resolved the motions on March 26, 2001.

Issues:

  • Scope of ADB Staff Immunity
  • Whether ADB officers and staff enjoy absolute immunity from Philippine legal process.
  • Whether immunity extends to private acts such as slander.
  • Authority and Finality of Immunity Determination
  • Whether the DFA’s certification of immunity is a political question binding on courts.
  • Whether the ADB or DFA may invoke immunity for private acts of staff.
  • Applicable Legal Instruments
  • Whether the Vienna Convention on Diplomatic Relations applies to ADB staff.
  • Whether immunity provisions in the ADB Charter and Headquarters Agreement govern.

Ruling:

  • (Subscriber-Only)

Ratio:

  • (Subscriber-Only)

Doctrine:

  • (Subscriber-Only)

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