G.R. No. 111824 August 11, 1997
THE PEOPLE OF THE PHILIPPINES, plaintiff-appellee, vs. ELIZA BAGUS y DACAYAN, accused-appellant.

FACTS

The prosecution’s evidence stemmed from a buy-bust operation targeting Rodel San Pedro. After arresting Danilo Gatchalian with marijuana, police officers proceeded to San Pedro’s house. Finding only his wife, appellant Eliza Bagus, present, they decided to conduct the operation against her. Poseur-buyer P/Aide Bonifacio Lapuz approached Bagus, handed her a marked P20 bill, and requested two tea bags of marijuana. Bagus allegedly went inside her house, returned with the marijuana, and was arrested after the consummated sale. She then purportedly pointed the officers to sixty-five more tea bags hidden under a dog’s cage. The seized items tested positive for marijuana.
In her defense, Bagus denied the buy-bust operation. She testified that on the same date and time, two security guards and a handcuffed man arrived at her house looking for her husband. Not finding him, they brought her to a police station where she was detained. Her neighbor, Alfredo Santos, corroborated this account, testifying he was present and witnessed no buy-bust, saw no marijuana recovered from any dog cage, and stated Bagus had no such dog cage on her property.

ISSUE

Whether the guilt of the accused-appellant for the illegal sale of marijuana was proven beyond a reasonable doubt.

RULING

No. The Supreme Court reversed the conviction and acquitted Eliza Bagus. The ruling hinged on the failure of the prosecution to overcome the constitutional presumption of innocence with proof beyond reasonable doubt. The Court found the testimony of the lone prosecution eyewitness, P/Aide Lapuz, insufficient to sustain a conviction. His testimony was deemed uncorroborated and questionable, particularly regarding the alleged discovery of sixty-five additional tea bags of marijuana. The defense successfully cast doubt on this narrative through the credible testimony of neighbor Alfredo Santos, who was present at the scene and contradicted the police account, specifically denying the existence of the dog cage from which the marijuana was supposedly retrieved. This contradiction created reasonable doubt as to the truthfulness of the police officers’ version of events. The Court emphasized that in drug cases, especially those involving buy-bust operations, the evidence for the prosecution must be credible, convincing, and withstand the test of adversarial scrutiny. Where the defense evidence, such as the testimony of a disinterested witness, casts significant doubt on the prosecution’s story, the presumption of innocence must prevail. The acquittal was thus ordered on the ground of reasonable doubt.