G.R. No. 214759 APRIL 4, 2018
PEOPLE OF THE PHILIPPINES, Plaintiff-Appellee vs DINA CALATES y DELA CRUZ, Accused-Appellant

FACTS

Accused-appellant Dina Calates y Dela Cruz was charged with the illegal sale of dangerous drugs under Section 5 of Republic Act No. 9165 . The prosecution alleged that on April 22, 2003, a buy-bust operation was conducted in Bacolod City where PO1 Alain Sonido, acting as poseur-buyer, purchased one plastic sachet of shabu from Calates for PHP 100.00. Upon consummation of the sale, Calates was arrested, and the marked money was recovered. The seized item was marked “ASS” and later submitted to the crime laboratory, which confirmed it contained methylamphetamine hydrochloride.
The defense presented a starkly different version. Calates testified that on the said date, she was merely cooking at her residence when a commotion occurred outside. She went out to look and saw a man, Limuel Canlas, being arrested. When she later went outside again, she was suddenly handcuffed by police officers without explanation. She denied selling drugs and claimed her house was searched without a warrant, yielding nothing.

ISSUE

Whether the prosecution successfully proved the guilt of the accused beyond reasonable doubt, particularly in establishing the integrity and evidentiary value of the seized dangerous drug through an unbroken chain of custody.

RULING

The Supreme Court REVERSED the decision of the Court of Appeals and ACQUITTED the accused. The Court emphasized that in prosecutions for illegal sale of dangerous drugs, the identity of the drug must be established with moral certainty, and every link in the chain of custody must be accounted for to preserve its integrity from seizure to presentation in court. The Court found that the arresting officers committed unjustified lapses in the prescribed procedure under Section 21 of RA 9165. There was a failure to conduct a physical inventory and to photograph the seized item immediately after seizure and in the presence of the accused or her representative, as mandated. The prosecution offered no explanation for these omissions.
The legal logic is clear: the State bears the burden of proving the elements of the crime and the integrity of the corpus delicti beyond reasonable doubt. The chain of custody rule is a procedural safeguard against tampering, planting, or contamination of evidence. The prosecution’s failure to justify the procedural deviations created reasonable doubt as to whether the item presented in court was the same one allegedly seized from the accused. Since the very identity of the dangerous drug was compromised, the accused’s guilt was not proven to the required moral certainty. The presumption of innocence prevails, and the accused has no burden to prove her innocence.