Chain of Custody in Drug Busts: Why Witnesses Must Be Present at Seizure

In a significant ruling on drug-related prosecutions, the Supreme Court reversed the conviction of two men accused of selling shabu, underscoring that police officers must strictly follow the chain of custody rules under Republic Act No. 9165. The case of People v. Cotura (G.R. No. 241251, December 10, 2019) reminds law enforcers that the presence of required witnesses at the moment of seizure is not a mere formality—it is a safeguard against the planting of evidence and a cornerstone of the presumption of innocence.

The Facts of the Case

On July 31, 2012, a buy-bust team in Quezon City arrested Sammy Cotura and Louie Anadia for allegedly selling 97.91 grams of shabu to a poseur-buyer. The police conducted the inventory and took photographs of the seized drugs at the place of arrest. However, the barangay captain and a media representative arrived only thirty minutes after the arrest and confiscation. No representative from the Department of Justice (DOJ) was present at all.

The Regional Trial Court convicted both accused, and the Court of Appeals affirmed. The Supreme Court, however, reversed the conviction and acquitted the accused on the ground of reasonable doubt.

The Issue: Compliance with Section 21, RA 9165

The central question was whether the police officers complied with the mandatory requirements of Section 21, Article II of RA 9165, which governs the custody and disposition of seized dangerous drugs.

Under the original text of Section 21, which applied to this case, the apprehending team must, immediately after seizure and confiscation, physically inventory and photograph the drugs in the presence of:

• The accused or his representative or counsel;
• A representative from the media;
• A representative from the DOJ; and
• Any elected public official.

These witnesses must sign the inventory and receive copies of it.

The Ruling: Presence of Witnesses at Seizure Is Crucial

The Supreme Court held that the police officers unjustifiably failed to comply with these mandatory requirements. The Court stressed that the insulating witnesses must be present not only during the inventory, but more importantly, at the time of apprehension and seizure itself.

The Court quoted its earlier ruling in People v. Tomawis (G.R. No. 228890, April 18, 2018), explaining that it is during the initial stage of apprehension and confiscation that the presence of the three witnesses is most needed. Their presence at that moment forecloses the pernicious practice of planting evidence or compromising the integrity of the seized items.

In this case, the prosecution offered no explanation for the belated arrival of the barangay captain and media representative. Nor did it justify the complete absence of a DOJ representative. The Court noted that the buy-bust team had ample time—from receiving the confidential information on July 30 to the actual operation on July 31—to plan the operation and arrange for the required witnesses.

The Saving Clause Cannot Save the Prosecution

While Section 21 and its Implementing Rules contain a saving clause that allows non-compliance under justifiable grounds, the prosecution must: (1) recognize the police officers' lapses, (2) present a justification for those lapses, and (3) show that reasonable efforts were exerted to comply with the procedure.

In this case, the prosecution failed to do any of these. The Court emphasized that a mere statement that police officers tried to call a DOJ representative but no one arrived is not a sufficient justification. Police officers must convince the Court that they exerted earnest efforts to comply with the mandated procedure.

Practical Takeaways

• Witnesses must be at the scene, not called in later. The presence of the media, DOJ, and elected public official is required at the time of seizure and confiscation, not merely at the inventory. "Calling them in" after the operation is finished defeats the purpose of the law.
• Timing matters in buy-bust operations. Since buy-bust operations are planned activities, police teams have the time and opportunity to bring the required witnesses to the intended place of arrest. Failure to do so is difficult to justify.
• The saving clause has strict requirements. Non-compliance will not automatically invalidate a seizure, but the prosecution must acknowledge the lapse, explain it, and prove earnest efforts to comply. Silence or vague excuses will not suffice.
• Chain of custody protects the accused. The rules exist to prevent planting, substitution, or contamination of evidence. When doubts arise about the integrity of the seized drugs, the accused is entitled to acquittal under the principle that all doubts should be resolved in favor of the accused.

A Reminder to Law Enforcement

The Supreme Court's decision serves as a stern reminder that the State's campaign against illegal drugs must be conducted with strict adherence to the law. As the Court noted, when fundamental rights to life and liberty hang in the balance, the Court must remain unforgiving in exacting the standards laid down by law—even if it means letting the guilty go unpunished.

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