G.R. No. 212994 . January 31, 2018.
PEOPLE OF THE PHILIPPINES, Plaintiff-appellee, vs. JOSHUA QUE Y UTUANIS, Accused-appellant.

FACTS

Accused-appellant Joshua Que was charged with illegal sale and possession of dangerous drugs. The prosecution alleged that on July 26, 2003, a buy-bust operation was conducted in Zamboanga City where PO3 Sammy Lim, acting as poseur-buyer, purchased a sachet of shabu from Que. Upon arrest, another sachet was recovered from him. The seized items were turned over to the investigator, SPO4 Eulogio Tubo, at the police station, who then marked them and prepared the request for laboratory examination. The contents tested positive for methamphetamine hydrochloride. Que denied the charges, claiming he was arbitrarily arrested while praying at a shrine and that no drugs were found on him during a search.
The Regional Trial Court convicted Que, a decision affirmed by the Court of Appeals. Que appealed to the Supreme Court, arguing the prosecution failed to establish an unbroken chain of custody over the seized drugs, particularly questioning the absence of required witnesses during the inventory and photographing of the evidence as mandated by Section 21 of Republic Act No. 9165 .

ISSUE

Whether the prosecution successfully proved the integrity and identity of the corpus delicti by complying with the chain of custody requirements under Section 21 of Republic Act No. 9165 .

RULING

No. The Supreme Court reversed the convictions and acquitted accused-appellant Joshua Que. The Court emphasized that the chain of custody rule is a crucial procedural safeguard to ensure the identity and integrity of seized drugs, which is the very corpus delicti of the offenses. Non-compliance with this rule, unless justified, renders the evidence inadmissible and warrants acquittal.
The legal logic is clear: the prosecution bears the burden to account for each link in the chain—from seizure, marking, inventory, to laboratory examination. The records showed a critical gap. The inventory and photographing of the seized items were conducted at the police station without the presence of any of the required witnesses: an elected public official, a representative from the Department of Justice, or a media representative. The prosecution offered no explanation for this deviation. The presence of these insulating witnesses is vital to prevent planting, contamination, or switching of evidence. Their absence, unexplained, creates reasonable doubt on whether the items presented in court were the same ones seized from the accused. Consequently, the integrity of the corpus delicti was compromised, and Que’s guilt was not proven beyond reasonable doubt.