Unbroken Chain Upholding Convictions In Drug Cases Through Evidence Integrity

The Supreme Court, in People v. Salvidar y Garlan (G.R. No. 207664, June 25, 2014), affirmed the conviction of an accused for illegal sale and possession of marijuana. The case clarifies a crucial point for criminal defense and prosecution alike: strict compliance with the procedural requirements of Section 21, Article II of Republic Act No. 9165 is not always mandatory. What matters most is that the integrity and evidentiary value of the seized drugs are preserved, establishing an unbroken chain of custody.

The Buy-Bust Operation and Arrest

On November 12, 2007, police officers in Caloocan City conducted a buy-bust operation against Gil Salvidar y Garlan, who was suspected of selling marijuana. A poseur-buyer approached the accused and purchased ten plastic sachets of dried marijuana for P100. After the transaction, a search yielded an additional transparent plastic box containing 29.01 grams of dried marijuana.

The accused was arrested and charged with violations of Sections 5 (sale) and 11 (possession) of RA 9165. The seized items were marked at the scene, turned over to the investigating officer, and later submitted to the crime laboratory. The laboratory examination confirmed the items were marijuana.

The Defense's Challenge on Evidence Handling

The accused appealed his conviction, arguing that the prosecution failed to establish an unbroken chain of custody over the seized drugs. Specifically, the defense pointed out that the items were not photographed and inventoried in the presence of a media representative, a Department of Justice official, and an elective government official, as required by Section 21 of the Implementing Rules and Regulations of RA 9165.

The defense also noted that the seized items were delivered twice to the crime laboratory—first to a police officer and then to the forensic chemical officer—and that this intermediate custodian did not testify.

Substantial Compliance Is Sufficient

The Supreme Court rejected the defense's arguments. The Court reiterated that the requirement under Section 21 is one of substantial compliance, not perfect adherence. The provision itself allows for noncompliance under justifiable grounds, provided the integrity and evidentiary value of the seized items are preserved.

In this case, the Court found the chain of custody unbroken. The poseur-buyer marked the ten sachets at the place of arrest in the presence of the accused. The back-up officer marked the plastic box. The items were then turned over to the investigating officer, who prepared the acknowledgment receipt and the request for laboratory examination. The forensic officer received the items and conducted the test. All these witnesses positively identified the same items in court.

The Defense's Stipulations Weakened Its Claim

A significant factor in the Court's ruling was that the defense had stipulated to the testimonies of the investigating officer and the forensic chemical officer. By agreeing to dispense with their cross-examination, the defense effectively admitted there was nothing irregular in their handling of the evidence. The Court noted that if the accused sincerely believed there was a breach, he would have insisted on examining these witnesses.

Practical Takeaways

• Substantial compliance with Section 21, RA 9165 is enough. The core requirement is preserving the integrity of the seized drugs, not rigid adherence to every procedural detail.
• Marking at the scene matters. Immediate marking of seized items at the place of arrest, in the presence of the accused, strengthens the chain of custody.
• Stipulations can be costly. Agreeing to dispense with a witness's testimony may waive the right to challenge that witness's handling of evidence.
• Credibility of police witnesses prevails. Absent proof of ill motive, the testimony of buy-bust team members is given full faith and credit.
• Denial is a weak defense. Bare denials cannot overcome positive, categorical testimony from prosecution witnesses.

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