Reasonable Doubt Prevails: Strict Chain of Custody in Drug Cases

In a significant ruling reinforcing the rights of the accused in drug cases, the Supreme Court acquitted Perigrina Cadungog of illegal sale of dangerous drugs. The Court reversed the convictions of the lower courts, emphasizing that police officers must strictly comply with the chain of custody rules under Republic Act No. 9165, also known as the Comprehensive Dangerous Drugs Act of 2002. The case highlights that the presumption of regularity in police work cannot override the constitutional presumption of innocence when law enforcers fail to justify procedural lapses.

The Facts of the Case

On 31 July 2008, police officers in Malabuyoc, Cebu conducted a buy-bust operation against the appellant, who was suspected of selling illegal drugs. PO1 Romeo Caacoy acted as the poseur buyer and purchased two plastic sachets of suspected shabu for PHP 500.00. After the transaction, the appellant was arrested, and the seized items were marked and inventoried at the scene.

The prosecution presented the seized drugs and the testimony of police officers to establish the sale. The defense, however, claimed that the appellant was merely at home cooking when police barged into her house, dragged her to their vehicle, and later presented two plastic sachets that she allegedly owned.

The Issue Before the Court

The central issue was whether the prosecution had proven the appellant's guilt beyond reasonable doubt, particularly whether the integrity and identity of the seized drugs were preserved in accordance with the chain of custody rules under Republic Act No. 9165. The Court also examined whether the police officers' failure to follow the required procedure was justified.

The Chain of Custody Requirement

Republic Act No. 9165 prescribes the procedure for handling confiscated drugs. The apprehending team must physically inventory and photograph the seized items immediately after seizure, in the presence of the accused or their representative, a representative from the media, a representative from the Department of Justice, and an elected public official. These witnesses must sign the inventory and receive a copy.

The Court noted that a buy-bust operation is a planned activity, giving police officers ample time and opportunity to secure the presence of these witnesses. Deviation from the procedure is allowed only when there are justifiable grounds and the integrity of the seized items is properly preserved. The prosecution bears the burden of proving compliance and explaining any failure.

The Police Lapses

The Court identified several violations of the chain of custody rules in this case. First, the police officers failed to immediately mark the seized drugs at the place of arrest, marking them only later at the police station without explanation. Second, no photographs were taken during the inventory, and no reason was given for this omission. Third, the required witnesses — a DOJ representative, a media representative, and an elected public official — were not present during the inventory. The inventory receipt was signed only by police officers and three neighbors.

The police officer's explanation that the incident "suddenly happened" was rejected by the Court. Since the buy-bust was a planned operation, the team had ample time to secure the required witnesses. The Court also noted that the police had conducted surveillance for 11 days before executing the operation.

The Ruling

The Supreme Court reversed the conviction and acquitted the appellant on reasonable doubt. The Court held that the prosecution's failure to justify its non-compliance with the chain of custody rules seriously cast doubt on the existence and identity of the alleged drugs. The presumption of regularity in the performance of official duty could not prevail over the stronger presumption of innocence. The Court emphasized that conviction must stand on the strength of the prosecution's evidence, not on the weakness of the defense.

Practical Takeaways

• Strict compliance matters: Police officers must follow the chain of custody rules meticulously, including immediate marking, inventory, and photographing of seized drugs in the presence of required witnesses.
• Planned operations require preparation: Since buy-bust operations are planned, police teams must secure the presence of the DOJ representative, media representative, and elected public official before or immediately after the operation.
• Justifiable grounds must be proven: Any deviation from the chain of custody rules must be supported by justifiable reasons, which must be alleged and proven as facts, not merely claimed.
• Prosecution bears the burden: The prosecution must prove compliance with the chain of custody rules and adequately explain any lapses. Failure to do so may result in acquittal on reasonable doubt.
• Presumption of regularity is not automatic: Courts will not rely on the presumption of regularity when there is evidence of non-compliance with mandatory procedures in drug cases.

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