Strict Compliance With Drug Evidence Procedures Protects the Accused's Rights

In a significant ruling, the Supreme Court reversed the conviction of Victor Sumilip y Tillo for illegal sale of dangerous drugs, emphasizing that strict compliance with the chain of custody requirements under the Comprehensive Dangerous Drugs Act is not a mere procedural technicality but a safeguard for the accused's constitutional rights. The case highlights that law enforcers must meticulously account for seized drugs from the moment of confiscation to their presentation in court.

The Case

On July 4, 2009, police officers in San Fernando City, La Union conducted a buy-bust operation against Sumilip based on information from a confidential informant. PO2 Ricardo Annague acted as the poseur-buyer, purchasing 51.15 grams of marijuana from Sumilip for P500.00 using marked money. After the arrest, the police brought Sumilip and the seized marijuana to the police station, where the marking, inventory, and photographing were conducted in the presence of barangay officials.

The Regional Trial Court convicted Sumilip, sentencing him to life imprisonment and a fine of P500,000. The Court of Appeals affirmed the conviction, ruling that the prosecution had established an unbroken chain of custody. Sumilip appealed to the Supreme Court.

The Issue

The central question was whether the prosecution proved Sumilip's guilt beyond reasonable doubt, specifically whether it established the corpus delicti—the seized marijuana—through proper compliance with Section 21 of Republic Act No. 9165.

The Ruling

The Supreme Court acquitted Sumilip, finding fatal gaps in the prosecution's compliance with the chain of custody requirements. The Court identified several violations:

Belated marking and inventory. The marking, inventory, and photographing of the seized marijuana were not done immediately after the apprehension at the place of arrest. Instead, police waited until they reached the police station.

Missing required witnesses. Section 21(1) requires the presence of the accused, an elected public official, a Department of Justice representative, and a media representative during inventory and photographing. Only barangay officials were present, and there was no showing they were present at the actual apprehension.

Unaccounted custody. The prosecution failed to identify who had custody of the marijuana from the time of arrest to its marking at the police station, and failed to describe measures taken to preserve its integrity.

Strict Compliance and Its Exceptions

The Court reiterated that noncompliance with Section 21 may only be excused when the prosecution establishes: (1) justifiable grounds for noncompliance, and (2) that the integrity and evidentiary value of the seized items were properly preserved.

The prosecution must plead and prove both elements—it cannot rely on self-serving assurances. The presumption of regularity in the performance of official duties cannot cure manifest deviations from legal requirements. As the Court noted, the presumption applies only when officers are shown to have acted in keeping with established standards.

Practical Takeaways

• Chain of custody is critical. In every drug case, the prosecution must account for the seized items from seizure to court presentation through four links: marking, turnover to the investigating officer, turnover to the forensic chemist, and submission to court.
• Immediacy matters. Inventory and photographing should be done at the place of apprehension, with required witnesses present during the arrest itself.
• Witnesses are mandatory. The presence of the accused, an elected official, a DOJ representative, and a media representative is required—unless a justifiable ground for their absence is proven.
• Document everything. Law enforcers must specify who had custody of seized drugs at every stage and describe the measures taken to preserve their integrity.
• Presumption of regularity is not a shield. Courts will not presume regularity when the official act is irregular on its face.

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