Res Judicata and One-Year Prescription: Supreme Court Settles Cyber Libel Rules

The Supreme Court, sitting En Banc, recently denied motions for partial reconsideration in Causing v. People (G.R. No. 258524, April 8, 2026), settling two important questions: how long the crime of cyber libel takes to prescribe, and whether an unsigned resolution of the Court can bind persons who were not parties to that earlier case. The ruling provides clarity for online speech, criminal prosecution, and the value of Court dispositions.

The Case Before the Court

Petitioner Berteni Cataluña Causing faced two criminal complaints for cyber libel filed by Representative Ferdinand Ledesma Hernandez. Causing moved to quash the Informations, arguing that the alleged defamatory posts had already prescribed. The Regional Trial Court of Quezon City denied the motion, and the Supreme Court affirmed.

In its October 11, 2023 Decision, the Court held that cyber libel prescribes in one year, reckoned from discovery by the offended party, the authorities, or their agents. Both Causing and the Office of the Solicitor General (OSG) sought partial reconsideration. Causing argued prescription should run from the date of publication, while the OSG argued cyber libel should prescribe in 15 years because it carries a heavier penalty.

Cyber Libel Is Still Libel

The Court rejected the OSG's argument that cyber libel is a new and distinct crime. Section 4(c)(4) of Republic Act No. 10175 (Cybercrime Prevention Act) does not create a new offense. It merely recognizes the computer system as another means of committing libel as defined in the Revised Penal Code. The Cybercrime Prevention Act simply added the use of information and communications technology as a qualifying circumstance that raises the penalty by one degree. The crime itself remains the same libel punished under the Revised Penal Code.

One-Year Prescription Under the Revised Penal Code

Because cyber libel is the same crime of libel, the Court applied the one-year prescriptive period provided for libel under the Revised Penal Code. The Court noted that even if cyber libel carries a heavier penalty, it falls under "other similar offenses" covered by the same prescription provision.

The Court traced the legislative history of Republic Act No. 4661, which shortened libel's prescription from two years to one year. This was meant to synchronize the criminal prescription with the one-year period for civil actions for defamation under the Civil Code. The same rationale applies to cyber libel today.

Prescription Runs From Discovery

The Court also clarified when the one-year period begins. Under the Revised Penal Code, prescription runs from the discovery of the crime by the offended party, the authorities, or their agents. The Court declined to presume that online posts are discovered at the moment of posting, because discovery is a factual matter that requires evidence. Causing may still present such evidence during trial.

Unsigned Resolutions Are Not Doctrinal

The OSG cited Tolentino v. People, an unsigned Resolution, to argue that cyber libel prescribes in 15 years. The Court held that unsigned resolutions are not doctrinal and do not fall under Article VIII, Section 4(3) of the Constitution, which requires that doctrines laid down by the Court may only be modified or reversed En Banc.

Under the Internal Rules of the Supreme Court, unsigned resolutions dispose of cases on the merits but have no significant doctrinal value. They are binding only on the parties to that case through res judicata. They cannot bind non-parties through stare decisis because they are unpublished and do not show the concurrence of the Justices who deliberated.

The Court reconciled conflicting rulings and affirmed that only decisions and signed resolutions may lay down doctrines. This protects due process: the public cannot be expected to follow rulings they cannot access.

Practical Takeaways

• Cyber libel prescribes in one year from discovery by the offended party, authorities, or their agents, not from the date of posting.
• The one-year period may be extended if the offended party discovers the post later, so evidence of discovery is critical in cyber libel cases.
• Unsigned and minute resolutions of the Supreme Court bind only the parties to that case; they do not create precedents for the public.
• Only decisions and signed resolutions of the Supreme Court carry doctrinal weight and must be followed by lower courts.
• Persons facing cyber libel charges should raise prescription during trial with proper evidence, not merely in a motion to quash.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.