Title
People vs. Mendoza y Potolin
Case
G.R. No. 220759
Decision Date
Jul 24, 2017
Armando Mendoza convicted for illegal sale of marijuana in a buy-bust operation; chain of custody upheld, acquitted for illegal possession due to insufficient evidence.
A

Case Summary (G.R. No. 220759)

Key Dates and Procedural Posture

Alleged offenses and buy-bust operation: April 20, 2006. Informations filed: April 24, 2006 (Criminal Case Nos. 4637 and 4638). RTC Decision convicting on both counts: September 18, 2008. Court of Appeals Decision (affirming sale, reversing possession): March 24, 2015. Supreme Court disposition affirming CA as to sale and dismissing the appeal: July 24, 2017. Appellant was arraigned and pleaded not guilty; trial proceeded on the facts recited below.

Charges and Elements Alleged

Two separate Informations alleged: (1) Criminal Case No. 4637 — violation of Section 11 (illegal possession) for having in control and possession two teabags of marijuana (weights 0.95g and 0.97g); (2) Criminal Case No. 4638 — violation of Section 5 (illegal sale) for selling four teabags of marijuana (weights 0.96g, 1.11g, 0.97g and 0.98g) to a poseur-buyer for P200.00 in two marked P100 bills. The prosecution bore the burden to prove beyond reasonable doubt the elements of the charged offenses, including identity, object, consideration, delivery and payment (for sale), and corpus delicti and chain of custody (for both possession and sale where applicable).

Factual Findings — Investigation and Surveillance

A confidential informant reported to PAIDSOTG that appellant was selling illegal drugs in Carigara. PAIDSOTG coordinated with the local police and confirmed through surveillance that appellant was engaged in selling marijuana. PDEA was coordinated with to conduct a buy-bust operation. These facts supported the planning and execution of a covert operation culminating in the encounter of April 20, 2006.

Factual Findings — Buy-Bust Operation and Arrest

On April 20, 2006, PO2 Ricote (poseur-buyer) and the CI met appellant at a sari-sari store. Appellant stated a price of P50 per teabag; Ricote agreed to buy four. Appellant produced four teabags of suspected dried marijuana leaves and handed them to Ricote in exchange for two marked P100 bills. Ricote signaled (scratching his head) and backup moved in; after a brief attempt to escape, appellant was restrained, informed of constitutional rights, frisked, and found to have two teabags and the marked money in his pocket. Appellant and seized items were taken to the barangay hall for inventory and later to the police station.

Inventory, Marking and Custodial Transfers

At the barangay hall, PO2 Ricote and PO3 Parena prepared and signed a receipt of property seized listing the four teabags and the marked money; Barangay Chairman Ernesto Dipa signed as witness. P/Insp. Son prepared a certificate of inventory also signed by the barangay chair. The prosecution’s evidence shows the items were marked (initials “EA-1” to “EA-4” reflecting arresting officers’ names in the record), turned over to SPO1 Cesar Cruda who acknowledged receipt, and subsequently delivered to the PNP Crime Laboratory Service Regional 8 for chemical analysis; transfer was witnessed by PO2 Ricote.

Laboratory Examination and Exhibit Handling

Forensic Chemist P/C Insp. Edwin Zata examined the submitted specimens, which were identified as four heat-sealed transparent plastics marked “EA-1” to “EA-4” containing dried suspected marijuana leaves totaling 4.02 grams; tests yielded positive results for marijuana. Findings were embodied in Chemistry Report No. D-094-2006 and a certification dated April 21, 2006. After examination, the chemist resealed the specimens with masking tape inscribed with his initials and the report number, marked the specimens “ABCD,” and turned them over to the evidence custodian. The seized teabags were thereafter presented in court and identified by PO2 Ricote.

Defendant’s Version and Alibi

Appellant denied the charges, presenting an alibi that he and companions were repairing a pedicab, later went to a photographer’s house, and then rested at the sari-sari store. He alleged that police arrived, detained him without explanation, handcuffed him, and that police took money from a jar and placed it on the table before photographing him with those items — effectively alleging planting of evidence.

RTC Findings and Convictions

The Regional Trial Court found appellant guilty beyond reasonable doubt on both counts (illegal possession under Section 11(3) and illegal sale under Section 5), relying on positive in-court identification by the arresting officers, the inventory and marking procedures, laboratory confirmation, and the surveillance history. The RTC sentenced appellant to twelve years and one day and a fine of P300,000 for possession, and to life imprisonment and a fine of P1,000,000 for sale.

Court of Appeals Ruling

The Court of Appeals affirmed the RTC conviction for unlawful sale (Section 5) but reversed and set aside the conviction for unlawful possession (Section 11) for failure of the prosecution to prove corpus delicti as to the two teabags allegedly seized from appellant’s person after arrest. The CA found that, for the possession count, the two teabags were not presented in court and there was inadequate testimony regarding their whereabouts, creating a gap in proof as to that corpus.

Supreme Court’s Review of Sale Elements and Corpus Delicti

The Supreme Court reviewed the elements required for illegal sale: identity of buyer and seller, the object, the consideration, and delivery/payment. The Court emphasized that proof that the transaction occurred and presentation of evidence of the corpus delicti are material. Applying these standards, the Court found the prosecution satisfactorily established the sale: PO2 Ricote’s positive identification of appellant as seller, marked money handed over as consideration, laboratory confirmation that the four teabags examined were marijuana, and in-court identification by the poseur-buyer of the marked exhibits.

Entrapment Versus Instigation — Predisposition Analysis

The Court applied the established distinction between instigation and entrapment as articulated in People v. Dansico and People v. Doria. Instigation requires inducing an otherwise unwilling person to commit a crime (leading to acquittal); entrapment involves facilitating the arrest of one already predisposed to commit the crime (does not bar conviction). The Court found evidence of prior surveillance confirming appellant’s drug-selling activity, demonstrating appellant’s predisposition. The transaction displayed the hallmarks of a lawful buy-bust (decoy solicitation), and no instigation sufficient to extinguish criminal liability was established.

Chain of Custody Analysis and Evidentiary Integrity

Addressing appellant’s conten

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