Title
IN RE: Del Castillo
Case
A.M. No. 10-7-17-SC
Decision Date
Feb 8, 2011
Justice Del Castillo was accused of plagiarism in *Vinuya v. Romulo*; the Court ruled no malicious intent, distinguishing judicial writing from academic standards, upholding dismissal of charges.

Case Digest (G.R. No. 42780)
Expanded Legal Reasoning Model

Facts:

  • Parties and Allegations
    • Petitioners: Isabelita C. Vinuya and other members of the Malaya Lolas Organization.
      • Charged Associate Justice Mariano C. Del Castillo with:
        • Plagiarism (failure to attribute lifted passages from foreign authors).
        • Twisting of cited materials.
        • Gross neglect of duty.
    • Respondent: Justice Mariano C. Del Castillo, author of the Supreme Court decision in Vinuya v. Romulo (G.R. No. 162230).
  • Procedural History
    • April 28, 2010 – Vinuya decision promulgated by Supreme Court dismissing petitioners’ claims on the merits.
    • July 19, 2010 – Petitioners filed a Supplemental Motion for Reconsideration raising plagiarism issues.
    • July 27, 2010 – Letter from Justice Del Castillo referred to the Court’s Ethics and Ethical Standards Committee.
    • Ethics Committee Investigation
      • Collected evidence, heard petitioners and respondent, reviewed drafts.
      • Determined omissions of citations were accidental deletions by researcher.
      • Recommended denial of the motion for reconsideration.
    • October 12, 2010 – Supreme Court en banc dismissed the plagiarism charges against Justice Del Castillo.
    • January–February 2011 – Petitioners’ motion for reconsideration of the October 12 decision was denied.
  • Key Facts Found by Ethics Committee
    • Initial drafts contained proper attributions to three foreign authors (Criddle & Fox-Decent, Tams, Ellis).
    • Court‐employed researcher inadvertently deleted citations during final clean-up.
    • Remaining citations in the decision still showed that lifted material was not Del Castillo’s own.
    • No evidence of malicious intent or deliberate misrepresentation.

Issues:

  • Did Justice Del Castillo commit plagiarism by failing to attribute certain passages in his Vinuya decision?
  • Does judicial writing require the same attribution standards as academic scholarship?
  • Is malice or deliberate intent a necessary element of judicial plagiarism?

Ruling:

  • (Subscriber-Only)

Ratio:

  • (Subscriber-Only)

Doctrine:

  • (Subscriber-Only)

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