G.R. No. 220333 November 14, 2016
ANTONIO GAMBOA y DELOS SANTOS, Petitioner vs. PEOPLE OF THE PHILIPPINES, Respondent

FACTS

Petitioner Antonio Gamboa was convicted for illegal possession of dangerous drugs under Section 11, Article II of Republic Act No. 9165 . The case originated from a buy-bust operation on May 1, 2003, targeting a certain Jun Negro. After the sale, Negro fled into a nearby house. The poseur-buyer, PO1 Sahagun, pursued him and, upon entering the house, found Gamboa and Elizabeth Musni seated at a table with alleged drug paraphernalia. Gamboa and Musni were arrested. PO1 Sahagun recovered a plastic sachet with shabu residue from Musni, while SPO1 Manuel confiscated a plastic sachet of shabu from Gamboa. The seized items were marked at the police station, not at the place of arrest, and were later confirmed to be methamphetamine hydrochloride.
Gamboa denied the charges, claiming he was at the house to retrieve a television set and was forcibly dragged inside by two men who then planted evidence. The Regional Trial Court found him guilty, a decision affirmed by the Court of Appeals. The CA held the warrantless arrest and seizure were valid as incidental to a lawful buy-bust operation. Gamboa appealed to the Supreme Court, arguing the prosecution failed to establish the integrity and identity of the seized drugs due to non-compliance with the chain of custody rule under Section 21 of RA 9165.

ISSUE

Whether the Court of Appeals erred in affirming Gamboa’s conviction despite alleged breaches in the chain of custody of the seized dangerous drugs.

RULING

The Supreme Court granted the petition and acquitted Gamboa. The Court emphasized that in prosecutions for illegal possession of dangerous drugs, the identity of the corpus delicti must be established with moral certainty. This requires an unbroken chain of custody under Section 21 of RA 9165. The law mandates that the seizure and custody of drugs must include immediate physical inventory and photographing in the presence of the accused or his representative, a representative from the media and the Department of Justice, and any elected public official, with the insulating witnesses to be signed by all.
Here, the prosecution failed to comply with these safeguards. The police officers did not conduct the inventory and photography at the place of arrest or seizure. More critically, they offered no justifiable reason for not securing the required insulating witnesses—a media representative, a DOJ official, and an elected public official—during the inventory. The prosecution merely stated that no such witnesses were present, without explaining the effort exerted to secure their attendance. This unexplained deviation from the strict procedural mandate compromised the integrity of the seized items. Without proof that the integrity and evidentiary value of the drugs were preserved, Gamboa’s guilt cannot be sustained beyond reasonable doubt. The Court ruled that the prosecution’s failure to provide a credible explanation for the procedural lapses warranted acquittal.