G.R. No. 247522 - People vs. Mariano

Case Summary (G.R. No. 247522)

Factual Background

On August 6, 2011, a confidential informant alerted police about alleged illegal drug activity involving Nora and a co‑accused in front of NCCC Supermarket, Magsaysay Avenue, Davao City. A buy‑bust team designated Police Officer 3 Lendro Tutor as poseur‑buyer and armed him with a marked P1,000 bill. The CI identified the targets, introduced PO3 Tutor as the buyer, and an accused handed an elongated transparent sachet to PO3 Tutor in exchange for the marked money. PO3 Tutor signalled the backup team, which effected arrests. A body search of Nora allegedly yielded one large sachet weighing 1.0923 grams, forty elongated sachets weighing 3.5437 grams in total, and cash amounting to P10,150.00. The seized items were placed in evidence pouches, marked at the station, photographed, inventoried on August 8, 2011 in the presence of several witnesses, and submitted to the PNP Crime Laboratory where a qualitative test by Forensic Chemist PSI April Dela Rosa Fabian tested positive for methamphetamine hydrochloride.

Charges and Informations

Two Informations were filed on August 11, 2011: Criminal Case No. 70,390‑11 for violation of Section 5 of RA No. 9165 alleging the sale of one elongated sachet containing methamphetamine hydrochloride weighing 0.1569 gram; and Criminal Case No. 70,389‑11 for violation of Section 11 alleging possession of one big sachet weighing 1.0923 grams and forty elongated sachets weighing 3.5437 grams, total 4.6360 grams. Nora pleaded not guilty and trial ensued.

Defense Version

Nora testified that she had gone shopping and was standing near BDO when men in civilian clothes, one later identified as PO2 Virgilio Arubio, accosted and arrested her. She claimed a male officer searched her and then a female officer who declared her clear. She alleged officers took her shopping bag, placed her in a vehicle, and brought her to Sta. Ana Police Station. Nora asserted that a subsequent drug test yielded negative results. She denied selling or possessing illegal drugs.

Ruling of the Regional Trial Court

The RTC, in a March 21, 2017 Decision, convicted Nora beyond reasonable doubt of Illegal Sale and Illegal Possession under RA No. 9165. The court credited PO3 Tutor’s testimony, found that the elements of both offenses were satisfied, and held that the chain of custody was sufficiently established. The RTC accepted the delayed inventory as justifiable due to the Saturday operation and unavailability of certain witnesses. The RTC sentenced Nora to indeterminate imprisonment of twelve years and one day to twenty years and a fine of P300,000 for possession, and to life imprisonment and a fine of P500,000 for sale, and gave credit for preventive imprisonment.

Ruling of the Court of Appeals

The Court of Appeals, by Decision dated August 16, 2018, affirmed the RTC’s conviction but modified the penalty for possession to twelve years and one day as minimum to fourteen years and eight months as maximum. The CA thereby denied Nora’s appeal and upheld the findings of guilt for violations of Sections 11 and 5 of RA No. 9165.

Issues on Appeal to the Supreme Court

Nora raised that the prosecution failed to sufficiently establish the identities of buyer and seller, the object, and the consideration of the alleged sale; that possession was not proven; and that the chain of custody of the seized items was not clearly established. The People, through the Office of the Solicitor General, countered that PO3 Tutor’s testimony was credible, the presumption of regularity applied to police officers’ duties, and that substantial compliance with the chain of custody requirements preserved the integrity of the seized items.

Supreme Court’s Disposition

The Supreme Court found the appeal meritorious, reversed and set aside the CA Decision, and acquitted Nora for failure of the prosecution to prove guilt beyond reasonable doubt. The Court ordered Nora’s immediate release unless she was detained for another lawful cause and directed the Davao Prison and Penal Farm superintendent to implement the decision and report action taken.

Legal Basis and Reasoning — Elements Found but Corpus Delicti Not Proven

The Court acknowledged that evidence satisfied the elements of Illegal Sale and Illegal Possession: identification of a sale consummated between PO3 Tutor and Nora, recovery of the specified sachets, and laboratory confirmation that the specimens contained methamphetamine hydrochloride. However, the Court emphasized that identity and integrity of the seized drugs — the corpus delicti — must be established beyond reasonable doubt through an unbroken chain of custody. Citing People v. Kamad, the Court reiterated the four links required: (1) seizure and marking by the apprehending officer; (2) turnover to the investigating officer; (3) turnover to the forensic chemist for examination; and (4) submission by the forensic chemist to the court. The Court found that the prosecution failed to establish the first, third, and fourth links with sufficient particularity.

Specific Deficiencies in Chain of Custody and Compliance with Section 21

The Court detailed the deficiencies: PO3 Tutor did not mark the elongated sachets at the place of apprehension but only at the station, and the prosecution did not explain how individual sachets were segregated or identified from each other; the mingling of sachets and lack of initial marking made it impossible to determine which sachet was the object of the sale and which comprised the seized quantity for possession, an issue critical to penalty determination. The records lacked documentary or testimonial particulars showing how PO1 Marron handled and preserved the specimens after receipt and how PSI Fabian maintained the evidence before and after laboratory testing. The Court held these gaps opened the possibility of tampering, substitution, or alteration.

The Court further held that the procedural safeguards of Section 21, Article II of RA No. 9165 and Section 21(a) of the IRR require immediate physical inventory, marking, and photographing in the presence of insulating witnesses — the accused or counsel, a media represen

Case Syllabus (G.R. No. 247522)

Parties and Procedural Posture

People of the Philippines prosecuted Zoraida Mariano a.k.a. Nora for violations of Sections 5 and 11, Article II of Republic Act No. 9165.
The Regional Trial Court, Branch 13, Davao City convicted the accused of Illegal Sale and Illegal Possession and imposed imprisonment and fines.
The Court of Appeals affirmed the conviction but modified the penalty for Illegal Possession.
The Supreme Court granted review and reversed the Court of Appeals, acquitted the accused, and ordered her immediate release.

Key Factual Allegations

A confidential informant informed police of the accused's alleged drug activities at NCCC Supermarket, Davao City, leading to a buy-bust operation.
PO3 Lendro Tutor acted as poseur-buyer and was furnished P1,000.00 marked money bearing serial PS746307 and initials "LBT."
The poseur-buyer testified that he gave the marked money, received one elongated plastic sachet in the sale, and thereafter signaled the backup team who arrested the accused and her co-accused.
The poseur-buyer conducted a body search and recovered one big plastic sachet weighing 1.0923 grams, forty elongated sachets totaling 3.5437 grams, and cash amounting to P10,150.00.
An inventory and photographs were performed on August 8, 2011, two days after the buy-bust, in the presence of identified witnesses.
Forensic Chemist PSI April Dela Rosa Fabian examined specimens and reported a positive qualitative test for methamphetamine hydrochloride in Chemistry Report No. D-128-11.
The accused testified to an alibi and denied possession, claimed an initial female officer declared her "clear," and alleged that a drug test conducted two days later yielded negative results.

Procedural History

Two Informations were filed charging Illegal Sale (Section 5) and Illegal Possession (Section 11) under RA 9165.
The accused pleaded not guilty and underwent trial upon the evidentiary submissions of both parties.
The RTC rendered judgment on March 21, 2017, convicting the accused and imposing indeterminate penalty for possession and life imprisonment for sale with corresponding fines.
The Court of Appeals rendered its Decision on August 16, 2018, affirming conviction with modification of the possession penalty.
The accused appealed to the Supreme Court, which issued the decision under review.

Issues Presented

Whether the prosecution proved beyond reasonable doubt the elements of Illegal Sale under Section 5 and Illegal Possession under Section 11 of RA 9165.
Whether the prosecution established an unbroken chain of custody for the seized drugs and complied with the requirements of Section 21 of RA 9165 and its IRR.

Contentions of the Parties

The accused contended that the identities of buyer and seller, the object and consideration of the sale were not sufficiently established, that possession was not proved, and that the chain of custody was broken.
The People, through the Office of the Solicitor General, maintained that testimonial and documentary evidence including PO3 Tutor's testimony and laboratory results established all elements of the offenses and that the police substantially complied with chain of custody requirements.
The People further argued that there was no ill motive to fabricate the evidence and that the presump