Upholding a Drug Sale Conviction: Witness Credibility and Chain of Custody

In People v. Flor (G.R. No. 216017, January 19, 2018), the Supreme Court affirmed a conviction for illegal sale of shabu under Section 5, Article II of Republic Act No. 9165, the Comprehensive Dangerous Drugs Act of 2002. The case is a useful reminder of two things that decide most drug-sale prosecutions: whether the poseur-buyer's testimony is credible, and whether the integrity of the seized drug was preserved. It also shows that a lapse in the required inventory and photography is not always fatal to the prosecution.

The buy-bust operation

Acting on a report from a police asset that Niño Flor was selling shabu at the Philippine National Railway site in San Francisco, Iriga City, a police team held a briefing. One officer was designated team leader, another as poseur-buyer, and a third as back-up.

The poseur-buyer was given four marked P100 bills, which he passed to the asset. At the site, the asset transacted with Flor while the poseur-buyer stood about a meter away and watched. After the exchange, the asset handed a plastic sachet to the poseur-buyer, who signaled the team.

Flor ran upon seeing the team leader but was caught after a brief chase. He was informed of his rights. The sachet was marked at the scene with the team leader's initials in Flor's presence. During the arrest, another man previously arrested for a drug offense was spotted, resisted, and was shot in an encounter that required him to be taken to a hospital. Back at the station, a body search on Flor yielded the four marked bills, and the incident and items were recorded in the police blotter and spot report. Inventory and photographs were taken at the police station because of the shooting. The sachet was brought to the crime laboratory, where it tested positive for methamphetamine hydrochloride.

The defense version

Flor claimed he was simply at the site with his brother-in-law when the team leader suddenly approached, poked a gun at him, and frisked him. He said he was handcuffed and taken to the police station, where he was ordered to undress and was again frisked. The trial court convicted him, the Court of Appeals affirmed, and he elevated the case to the Supreme Court.

What the Court ruled

The Court dismissed the appeal. For a conviction for illegal sale of dangerous drugs, the prosecution must establish the identity of the buyer and seller, the object, and the consideration, as well as the delivery of the thing sold and its payment. What matters is proof that the transaction took place, coupled with presentation of the drug itself as the corpus delicti.

The Court found these elements present. The poseur-buyer testified that he personally saw the transaction from about a meter away, identified Flor as the seller, and described the object and the consideration. Absent evidence of ill will, the Court saw no reason to doubt his credibility. It reiterated that trial courts' findings on witness credibility are accorded respect, especially when affirmed by the Court of Appeals, because the trial court heard the testimony and observed the witnesses' demeanor.

On the chain of custody, the Court held that the prosecution established an unbroken chain from seizure to laboratory examination and presentation in court. While the ideal is an unbroken chain, the law allows substantial compliance provided the integrity and evidentiary value of the seized items are preserved. The police explained why inventory and photography were done at the station: Flor fled upon seeing the officers, and the shooting incident required the other man to be brought to a hospital. Flor himself admitted witnessing that shooting. The omission did not make the arrest illegal or the seized drugs inadmissible, because the integrity of the shabu was preserved.

Practical takeaways

• In drug-sale cases, the poseur-buyer's credible, firsthand account of the transaction often carries the prosecution.
• The prosecution must prove the identity of buyer and seller, the object, the consideration, and delivery and payment.
• The seized drug must be presented in court as the corpus delicti, with its integrity preserved.
• Inventory and photography should be done immediately after seizure, but substantial compliance may be allowed when justified and the integrity of the evidence is intact.
• A credible explanation for any procedural gap — such as an intervening emergency — can prevent that gap from defeating the case.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.