G.R. No. 108520 January 24, 1994
People of the Philippines, plaintiff-appellee, vs. Renato Sibug y Del Castillo, accused-appellant.

FACTS

Accused-appellant Renato Sibug was charged with violating Section 15, Article III of R.A. No. 6425 , as amended, for the unlawful sale and delivery of Methamphetamine Hydrochloride (Shabu) to P/Sgt. Martin de Guzman. The prosecution’s evidence established a buy-bust operation on July 10, 1991. Acting on an informant’s tip, a police team designated Sgt. De Guzman as the poseur-buyer. He was given two marked P100.00 bills. At the location, Sibug sold a small packet of aluminum foil containing shabu to De Guzman in exchange for the marked money. Upon De Guzman’s signal, the team arrested Sibug and recovered the marked bills. The substance was confirmed by the NBI to be shabu. The defense presented a different version, claiming police officers barged into Sibug’s house without a warrant, found nothing illegal, arrested him, and later demanded money for his release. The Regional Trial Court of Kalookan City found Sibug guilty beyond reasonable doubt and sentenced him to life imprisonment and a P20,000.00 fine.

ISSUE

The core issue is factual: the credibility of the witnesses. Specifically, whether the trial court erred in (1) not finding a violation of the constitutional right against unreasonable searches and seizures due to the alleged absence of a buy-bust operation; (2) giving weight to the allegedly contradictory and improbable testimonies of the prosecution witnesses while dismissing the defense; and (3) not holding that the prosecution failed to prove guilt beyond reasonable doubt.

RULING

The Supreme Court affirmed the trial court’s decision in toto. The Court upheld the trial court’s findings on witness credibility, noting that appellate courts generally do not disturb such findings unless certain facts of substance were overlooked. The Court found no such oversight. It ruled that the alleged inconsistencies in the prosecution witnesses’ testimonies (regarding the pre-arranged signal and their positions during the operation) were minor and did not affect the core narrative of the sale. The defense of denial and frame-up was deemed weak and unsupported by evidence of ill motive on the part of the police officers, who were presumed to have performed their duties regularly. The Court held that the buy-bust operation was valid and that the accused was caught in flagrante delicto, making the warrantless arrest and the incidental search lawful. Therefore, the prosecution successfully proved Sibug’s guilt beyond reasonable doubt.