G.R. No. 206880, June 29, 2016
PEOPLE OF THE PHILIPPINES, Plaintiff-Appellee, vs. ENRIQUE MIRANDA, JR. Y PAÑA @ “ERIKA” AND ALVIN ALGA Y MIRANDA @ “ALVIN,” Accused-Appellants.

FACTS

The prosecution alleged that based on a tip from a confidential informant, a buy-bust operation was conducted against appellants Enrique Miranda, Jr. and Alvin Alga. PO1 Niño Yang acted as poseur-buyer and purchased one plastic sachet of shabu from Miranda, who was presented by Alga. Upon the pre-arranged signal, the team arrested both appellants. The police recovered the buy-bust money from Alga and four more plastic sachets from Miranda. The seized items were marked and later confirmed to be methamphetamine hydrochloride. Appellants were charged with illegal sale and possession of dangerous drugs. The defense presented a starkly different version, claiming they were illegally arrested without any buy-bust operation, that armed men barged into Miranda’s house, handcuffed them, and brought them to the police station. Miranda also alleged irregularities in the urine specimen collection.

ISSUE

The core issue is whether the prosecution successfully proved the guilt of the appellants beyond reasonable doubt, particularly by establishing an unbroken chain of custody over the seized dangerous drugs as required by Section 21 of Republic Act No. 9165.

RULING

The Supreme Court REVERSED the Court of Appeals and ACQUITTED the appellants. The acquittal was anchored on the prosecution’s failure to comply with the mandatory chain of custody rule, which created reasonable doubt as to the integrity and identity of the corpus delicti. The legal logic is that in drug cases, the substance’s identity must be established with moral certainty. The law requires specific procedural steps—immediate physical inventory and photographing of seized items in the presence of the accused or their representative, a representative from the media and the Department of Justice, and any elected public official—to prevent switching, planting, or contamination of evidence. The Court found that the prosecution witnesses admitted the absence of these required witnesses during the inventory. No justifiable reason for this non-compliance was offered. This lapse breached the chain of custody, breaking the vital link between the evidence presented in court and the items allegedly seized from the appellants. Consequently, the integrity and evidentiary value of the seized drugs were compromised. Without the preserved integrity of the corpus delicti, the guilt of the accused cannot be sustained. The presumption of regularity in the performance of official duty cannot prevail over the stronger presumption of innocence and the prosecution’s failure to meet its burden of proof.