G.R. No. 87165 January 25, 1993
People of the Philippines, plaintiff-appellee, vs. Leticia Labarias, defendant-appellant.

FACTS

Leticia Labarias was charged with violating the Dangerous Drugs Act for allegedly selling two teabags of marijuana to Edmundo Rirao on February 12, 1988. The prosecution’s case was based on a buy-bust operation. A police team, acting on a tip, enlisted Rirao as a poseur-buyer. The team gave Rirao marked money and watched from a parked vehicle about ten meters away as he transacted with Labarias at her store. They claimed to have seen Labarias hand over two teabags in exchange for the money. Rirao then delivered the teabags to the police. Instead of immediately arresting Labarias, the team returned to headquarters to examine the teabags. The station commander later took only a small quantity from each teabag and sent this sample to the crime laboratory four days later, where it tested positive for marijuana. Labarias denied the accusation, testifying that the charge was fabricated because she had refused to give her pet dog to the police officers earlier that day, which allegedly provoked a veiled threat from one of them. The trial court convicted Labarias and sentenced her to reclusion perpetua and a fine.

ISSUE

Whether the prosecution proved the guilt of the accused beyond reasonable doubt for the illegal sale of marijuana.

RULING

The Supreme Court REVERSED the trial court’s judgment and ACQUITTED Leticia Labarias. The Court found that the prosecution failed to prove her guilt beyond reasonable doubt. Several irregularities created reasonable doubt: 1) The police did not immediately arrest Labarias after the alleged sale, deviating from standard buy-bust procedure where an in flagrante arrest is warranted. 2) The handling of the evidence was questionable; only a sample of the teabag contents was sent to the lab after a four-day delay, and the prosecution did not establish that the teabags were properly marked or that the sample examined definitively came from the teabags allegedly sold by Labarias. 3) The corpus delicti was not firmly established. 4) The accused’s testimony about the police’s motive (her refusal to give up her dog) was unrebutted. The Court emphasized that while it commends anti-drug efforts, convictions must rest on the strength of the prosecution’s evidence, not the weakness of the defense. The evidence presented was insufficient to overcome the constitutional presumption of innocence.