G.R. No. 172041 - Gateway Electronics Corp. vs. Asianbank Corp.

An Information was filed against accused-appellant Nova De Leon y Weves for violation of Section 5, Article II of Republic Act No. 9165 (Comprehensive Dangerous Drugs Act of 2002).
The specific allegation involved the willful, unlawful, and felonious sale of a heat-sealed transparent plastic sachet containing 0.01 gram of substance which, upon laboratory examination, tested positive for methamphetamine hydrochloride.
Upon arraignment, the accused pleaded not guilty to the charge.

The operation took place on May 31, 2009, in Parañaque City where the police, acting on information of illegal drug activities, initiated a buy-bust operation.
A designated poseur buyer (SPO1 Luminog Lumabao) was tasked to purchase the drug from the accused with a specific buy-bust amount of Php 200.00, supported by backup operatives (including SPO1 Ricky Macaraeg and other officers).
The team arrived at the target area and observed the accused standing in an alley, approached her, and executed a pre-arranged signal (removal of cap) that signified the materialization of the drug transaction.
After the transaction, the officers recovered the buy-bust money and the plastic sachet (the evidence) and then transported the accused to a Barangay Hall for inventory preparation.

The physical evidence underwent examination by a Police Crime Laboratory, resulting in a Physical Science Report (No. D-268-09S) confirming the presence of methamphetamine hydrochloride.
During the inventory at the Barangay Hall:

The recovered items were marked (with SPO1 Lumabao’s initials and the date) and documented.
Essential witnesses such as a Barangay Tanod (Melchor Alconaba) were present; however, representatives from the Department of Justice, the media, and any legal counsel for the accused were notably absent.

The police failed to strictly comply with the detailed requirements of Section 21 of RA 9165, which mandates that the inventory and photographing of seized items be conducted immediately at the scene of seizure, and in the presence of the accused or his/her representative, a DOJ representative, a media representative, and an elected public official.

In her Judicial Affidavit, the accused testified that on June 2, 2009, she was at her residence when a man forcefully entered and inquired about a certain individual, later leading to her arrest.
She alleged that she was threatened, coerced to indicate the whereabouts of another person, and was even asked for money in exchange for her liberty.
Her account strongly contradicted the narrative of a properly conducted buy-bust operation, aligning with the police procedural lapses observed in the case.

The Regional Trial Court (RTC) convicted the accused in Criminal Case No. 09-0617, finding her guilty beyond reasonable doubt.
The Court of Appeals (CA) affirmed the RTC’s Decision, sustaining the conviction by accepting the prosecution’s version of events and relying on the presumption of regularity in the actions of the police officers despite some procedural lapses.

Whether the prosecution was able to prove beyond reasonable doubt that accused-appellant De Leon committed the offense of illegal sale of dangerous drugs as defined under Section 5, Article II of RA 9165.
Whether the procedural lapses—specifically, the failure to strictly comply with the mandatory inventory, marking, and photographing requirements under Section 21 of RA 9165—compromised the integrity of the chain-of-custody and the authenticity of the seized evidence.
Whether the absence of the required witnesses (a DOJ representative, a media representative, and an elected public official) during the inventory process affects the admissibility and reliability of the evidence presented.