Essential Witness Rule Drug Sale Convictions Without Informant Testimony

In illegal drug prosecutions, the confidential informant who acts as the poseur-buyer in a buy-bust operation is often not presented in court. This practice frequently becomes the centerpiece of an accused's defense, with the argument that the prosecution fails to prove the case without the informant's testimony. In People v. Ejan y Bayato (G.R. No. 212169, December 13, 2017), the Supreme Court clarified the limits of this so-called essential witness rule, affirming that a conviction can stand on the testimony of an arresting officer who witnessed the entire transaction.

The Facts of the Case

On April 2, 2008, the National Bureau of Investigation (NBI) and Philippine Drug Enforcement Agency (PDEA) conducted a buy-bust operation in Dumaguete City after receiving a tip from a confidential informant. The informant, designated as the poseur-buyer, was given two marked P100.00 bills. SPO1 Allen June Germodo was tasked to accompany the informant, while the back-up team waited for a pre-arranged signal.

At the scene, the informant approached the accused, Jojo Ejan y Bayato, who gestured for him to come closer. SPO1 Germodo, watching from about five meters away, saw the informant hand the marked money to Ejan, who in turn handed over a sachet. After the signal was given, the back-up team moved in. Ejan attempted to flee but was apprehended. The sachet, later confirmed to contain 0.06 gram of methamphetamine hydrochloride (shabu), was marked, inventoried, and submitted for laboratory examination.

The Issue

The central issue raised on appeal was whether the prosecution's failure to present the informant-poseur buyer during trial was fatal to the case. Ejan argued that without the informant's testimony, the identity of the buyer was not established, and it was unclear whether the illegal transaction even took place. He also questioned the arresting officer's ability to witness the sale from a distance and the integrity of the seized drugs.

The Ruling

The Supreme Court dismissed the appeal and affirmed the conviction. The Court reiterated the elements of illegal sale of dangerous drugs under Section 5, Article II of Republic Act No. 9165: (1) the identity of the buyer and seller, the object, and the consideration; and (2) the delivery of the thing sold and payment therefor. What is material is proof that the transaction actually took place, coupled with the presentation in court of the corpus delicti.

The Court ruled that the presentation of an informant is not essential for conviction. Citing People v. Amansec (678 Phil. 831 [2011]) and People v. Legaspi (677 Phil. 181 [2011]), the Court explained that an informant's testimony is merely corroborative and cumulative. Informants are almost never presented in court because of the need to preserve their invaluable service to law enforcement.

What mattered in this case was the categorical testimony of SPO1 Germodo, who witnessed the exchange of marked money and the sachet from a distance of five meters. The Court found no reason to doubt his credibility, especially since the trial court had observed his demeanor firsthand and found his testimony "categorical and candid, untainted by inconsistencies, contradictions or evasions." These factual findings, sustained by the Court of Appeals, are given great weight and are generally not disturbed on appeal.

The Court likewise rejected the challenge to the integrity of the seized drugs. The arresting officers complied with the requirements of Section 21 of RA 9165: the sachet was marked at the place of arrest, an inventory was conducted in the presence of the accused and the required witnesses (a DOJ representative, a media representative, and a barangay kagawad), and photographs were taken. The sachet was immediately forwarded to the crime laboratory, and the forensic chemist confirmed it contained shabu. The chain of custody was unbroken.

Practical Takeaways

• The informant is not an indispensable witness. A conviction for illegal sale of dangerous drugs can stand without the informant-poseur buyer testifying, provided the arresting officer who witnessed the transaction gives clear and credible testimony.
• The arresting officer's testimony can be sufficient. The prosecution must prove the elements of the crime—identity of buyer and seller, object, consideration, delivery, and payment—but these can be established through the eyewitness account of a police officer who observed the sale unfold.
• Distance alone does not defeat credibility. An officer's testimony from a reasonable distance (here, five meters) is acceptable if the officer could clearly observe the exchange.
• Chain of custody remains critical. The prosecution must still prove the integrity of the seized drugs through proper marking, inventory with required witnesses, and timely submission to the crime laboratory.
• The essential witness rule has limits. While the informant's testimony is not required, the prosecution must still present sufficient evidence to prove guilt beyond reasonable doubt. The rule does not excuse a weak case; it simply recognizes that the informant's role is corroborative, not indispensable.

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