Chain of Custody in Drug Cases: Why Strict Compliance Matters After RA 10640

In a significant ruling, the Supreme Court reversed the conviction of an accused in a drug case, emphasizing that the prosecution's failure to strictly comply with the chain of custody rule under Republic Act No. 9165, as amended, is fatal to the case. The decision in People v. Ramos (G.R. No. 243944, March 15, 2021) serves as a critical reminder to law enforcement and prosecutors: the integrity of seized drugs must be preserved from the moment of seizure until presentation in court.

The Facts of the Case

On January 6, 2016, police officers in Pasig City conducted a buy-bust operation against Wesley Ramos y Mosca, who was arrested for allegedly selling a sachet of shabu and possessing three other sachets. The arresting officer marked the seized items at the place of arrest, and the inventory was conducted at the barangay hall in the presence of the Punong Barangay.

However, during the inventory, no representative from the media or the National Prosecution Service (NPS) was present. The forensic chemist who examined the seized drugs did not testify in court; instead, the parties merely stipulated on her qualifications and findings.

The Issue

The central question before the Supreme Court was whether the prosecution had proven the guilt of the accused beyond reasonable doubt, particularly whether the chain of custody of the seized drugs had been properly established.

The Ruling: Strict Compliance Is the Rule

The Supreme Court granted the appeal and acquitted the accused. The Court held that the prosecution failed to establish the chain of custody, which is essential to prove the identity of the corpus delicti—the dangerous drug itself.

Missing witnesses, no justification. Under Section 21 of RA 9165, as amended by RA 10640, the physical inventory and photography of seized items must be conducted in the presence of the accused or his representative, plus an elected public official and a representative of the NPS or the media. The Court noted that the prosecution offered no justification for the absence of the media or NPS representative. It emphasized that the mere presumption of regularity in the performance of official duty cannot prevail when the police blatantly disregard the law's requirements.

The fourth link was broken. The Court also found that the prosecution failed to establish the fourth link in the chain of custody—the turnover and submission of the seized drugs by the forensic chemist to the court. Since PSI Vicente did not testify, the stipulations on her testimony were "bereft of information" regarding the condition of the seized items while in her custody and the precautions taken to preserve their integrity.

Why This Matters

This ruling reinforces that the chain of custody rule is not a mere technicality. It exists to safeguard against switching, planting, or contamination of evidence. Law enforcers must exert genuine and sufficient efforts to secure the required witnesses, and prosecutors must present complete testimony covering every link in the chain—from seizure and marking to the forensic chemist's safekeeping and the eventual presentation in court.

Practical Takeaways

• For law enforcement: Always secure the presence of an elected public official and a representative from the NPS or media during inventory and photography. If their presence cannot be obtained, document the earnest efforts made and the justifiable reason for the failure.
• For prosecutors: Ensure that the forensic chemist testifies on the handling and safekeeping of the seized drugs, not just on the examination results. Stipulations must cover the condition of the evidence while in the chemist's custody.
• For defense counsel: Scrutinize every link in the chain of custody. The absence of required witnesses without justification, or gaps in testimony on how the evidence was handled, can be grounds for acquittal.
• For all parties: The presumption of regularity in police work is not a substitute for compliance with the law. Blatant violations of Section 21 will not be countenanced by the courts.

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