Title
People vs. Mateo
Case
G.R. No. L-869
Decision Date
Feb 9, 1948
Pastor Tan Mateo, a Philippine citizen, was convicted of treason for aiding Japanese forces during WWII by reporting guerrilla activities, leading to arrests. The court upheld his 15-year sentence, citing sufficient evidence under the "two-witness rule."
A

Case Summary (G.R. No. L-869)

Key Dates and Applicable Law

Decision date: February 9, 1948.
Applicable constitutional framework: 1935 Philippine Constitution (the constitution in force at the time of the decision).
Offense charged: Treason.
Sentence: Fifteen years reclusion temporal, fine of P2,000, and costs. Mitigating circumstance considered by trial court: lack of instruction.

Procedural Posture and Charge

The accused was tried, found guilty of treason, and sentenced as above. He appealed from the judgment. The prosecution advanced two counts (the decision treats the second count as the principal basis for conviction). The trial court applied a mitigating circumstance (lack of instruction) when imposing sentence. The Supreme Court affirmed the conviction and sentence on the record before it.

Core Factual Findings

The Court accepted that, from June 1942 to March 1945, the accused was employed in the Public Opinion Office in Dumaguete, an organization headed by Teodorico Lajato whose stated purpose was gathering information for the Japanese Army about guerrilla movements and activities. Witnesses placed the appellant frequently in the organization’s office and observed him going around Dumaguete and surrounding areas, gathering and reporting information to Lajato or to Major Soledad, the Chief of Police. The accused admitted being a native-born Filipino and admitted employment as a provincial guard and working in the Public Opinion Office in 1943, but denied being an informer and denied specific participatory acts in certain arrests.

Evidentiary Issue: Application of the Two-Witness Rule

The Court addressed the statutory two-witness rule governing treason prosecutions. Although multiple witnesses corroborated the appellant’s frequent presence at the Public Opinion Office and his general activities, the Court found that the evidence as to many of those general activities failed the two-witness requirement insofar as no single overt act was testified to by two witnesses on the same occasion. Thus, while collective testimony established adherence to the enemy in general terms and these activities could be considered as corroborative, the two-witness rule precluded treating every generalized activity as independently sufficient to prove treason.

Overt Act Requirement and the Arrest of Calubiran and Chan

The Court identified an overt act that satisfied the two-witness rule: the arrest of Alfonso Calubiran and Antonio Chan on 28 March 1943. Four witnesses (Alejandro Lazola, Antonio Chan, Alfonso Calubiran, and Pedro Gadiani) testified to the appellant’s important participation in that arrest. The arrest was instigated by the appellant’s report to the Chief of Police that he suspected the two men of being in league with the guerrillas; pursuant to the Chief’s order, the appellant and others proceeded to barrio Ubos, apprehended the men, imprisoned and investigated them (with ill-treatment alleged during the eight days of detention), and later released them. The Court treated this arrest as an overt act that gave aid and comfort to the enemy because the arrested men were shown to be guerrilla runners engaged in procuring supplies and reporting guerrilla observations and strength to guerrilla/USAFFE officers. The conjunction of the appellant’s adherence to the enemy (as evidenced by his office and activities) and his instrumental role in the arrest rendered that specific act treasonous.

Arrest of Angeles Catan — Insufficiency to Constitute Treason

By contrast, the Court found the appellant’s participation in the October 1944 apprehension of Angeles Catan insufficient to establish treason. The evidence did not disclose a treasonous motive or consequence for that arrest: witnesses indicated Catan was released or returned the next day, and some testimony indicated Catan later died after the arrival of the Americans. The appellant himself testified that Catan was a trusted undercover man of Lajato. Given these circumstances and lack of proof that the arrest aided the enemy, the Court declined to treat that apprehension as an overt act of treason.

Legal Reasoning and Conclusion

The

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