G.R. No. 175940 , February 6, 2008
The People of the Philippines, appellee, vs. Anson Ong a.k.a. Allan Co, appellant.

FACTS

The prosecution’s evidence established that a buy-bust operation was conducted against appellant Anson Ong on April 21, 1997, in Pasay City. Based on a tip, a police team arranged a drug deal at the Copacabana Hotel. SPO2 Wilfredo Saballa acted as the poseur-buyer. Appellant arrived in a car, and upon the informant’s signal, Saballa approached and showed him a bag containing boodle money. Appellant took the bag, after which another man grabbed the money and fled. Police officers then arrested appellant. A search of his car yielded a red bag containing 988.85 grams of methamphetamine hydrochloride (shabu). A separate charge for the sale of 989.05 grams of shabu was based on the same transaction.
Appellant presented a starkly different version. He testified, through an interpreter, that he was a Chinese national looking for a friend near the hotel. He claimed he was merely passing by when he was forcibly apprehended by armed men during a commotion, without any drug transaction occurring. He asserted he was framed and only learned of the drug charges during his arraignment.

ISSUE

The core issue is whether the prosecution proved appellant’s guilt for the illegal sale and possession of dangerous drugs beyond reasonable doubt.

RULING

The Supreme Court ACQUITTED appellant. The conviction was reversed due to the prosecution’s failure to establish the integrity and identity of the seized drugs, a critical element in both charges. The legal logic hinges on the chain of custody rule under Section 21 of Republic Act No. 9165 . The Court found glaring gaps in the testimony regarding the handling of the evidence after seizure.
Witness SPO2 Saballa, the poseur-buyer, testified that he did not know who actually took custody of the drugs from appellant’s car. Investigator Coballes, who allegedly retrieved the red bag from the car, was not presented to testify on the seizure. Furthermore, the police officer who received the evidence at the crime laboratory and the forensic chemist who examined it were also not presented as witnesses. The prosecution did not offer any justification for these omissions. Consequently, the prosecution failed to account for crucial links in the chain—from the seizure, to the turnover to the investigating officer, to the delivery to the laboratory, and finally to its presentation in court. This broken chain of custody creates reasonable doubt as to whether the shabu presented as evidence was the same substance allegedly taken from appellant. The presumption of regularity in the performance of official duty cannot prevail over the constitutional presumption of innocence and the prosecution’s burden to prove guilt beyond reasonable doubt. The Court applied the principle of in dubio pro reo (when in doubt, for the accused).