G.R. No. 215340 , July 13, 2016
People of the Philippines, Plaintiff-appellee vs. Gloria Caiz y Talvo, Accused-appellant

FACTS

Two Informations were filed against accused-appellant Gloria Caiz for violations of Sections 5 and 11 of Republic Act No. 9165 . The prosecution alleged that on February 20, 2008, a buy-bust operation was conducted in Urdaneta City, Pangasinan. Poseur-buyer SPO1 Patricio purchased one plastic sachet of shabu from Caiz using marked money. Upon arrest, two more sachets were allegedly recovered from her. The seized items were marked, with PO1 Valle testifying the marking was done immediately at the scene, while SPO1 Patricio stated it was done later at the police station. The sachets were then turned over to an investigator for transmittal to the crime laboratory, where they tested positive for methamphetamine hydrochloride.
Caiz presented a starkly different version, denying the sale and possession. She testified that she was at home when men accosted her, forcibly brought her to a barangay hall and later to the police station, and that the plastic sachets were only shown to her while she was detained in a vehicle. She claimed the evidence was fabricated and that she was strip-searched but nothing was found on her person.

ISSUE

Whether the prosecution proved the guilt of the accused beyond reasonable doubt, specifically by establishing the integrity and evidentiary value of the seized dangerous drugs through an unbroken chain of custody.

RULING

The Supreme Court ACQUITTED accused-appellant Gloria Caiz. The ruling hinged on the prosecution’s failure to establish an unbroken chain of custody, which compromised the integrity of the corpus delicti. The Court emphasized that in drug cases, the identity of the dangerous drug must be established with moral certainty, requiring proof of the preservation of its condition from seizure to presentation in court. Here, the prosecution witnesses gave conflicting testimonies on a critical link: the immediate marking of the seized items. PO1 Valle claimed the sachets were marked by SPO1 Patricio right after the arrest at the scene, while SPO1 Patricio himself testified that the marking was done only upon reaching the police station. This inconsistency created doubt regarding when the crucial first step in the chain—the marking for identification—actually occurred. The law requires marking immediately upon seizure to prevent switching, planting, or contamination.
Furthermore, the prosecution failed to account for the handling of the evidence between the arresting officers and the investigator, and from the investigator to the forensic chemist. There was no testimony detailing who had custody during these transfers or how the items were safeguarded. The Court also noted the absence of required witnesses (a representative from the media, the Department of Justice, or an elected public official) during the inventory and photography, with no justifiable reason provided for such lapse. These gaps in the chain of custody, coupled with the positive testimony of the accused alleging frame-up, created reasonable doubt. Consequently, the presumption of innocence prevailed, mandating acquittal.