Reasonable Doubt in Drug Cases: The Three-Witness Rule and Chain of Custody

The Supreme Court, in People v. Tomawis (G.R. No. 228890, April 18, 2018), acquitted an accused charged with illegal sale of drugs because the prosecution failed to prove compliance with the mandatory requirements of Section 21 of Republic Act No. 9165, the Comprehensive Dangerous Drugs Act of 2002. The case reminds law enforcers and prosecutors that the fight against illegal drugs must always be waged within the boundaries of law, and that the rights of the accused must be safeguarded at every step.

The Facts of the Case

On August 21, 2008, PDEA agents conducted a buy-bust operation against Basher Tomawis y Ali at a mall in Alabang, Muntinlupa City. A poseur-buyer allegedly purchased 12.74 grams of shabu from Tomawis using marked money. A commotion broke out during the arrest when bystanders tried to help Tomawis, who shouted for assistance. The team left the area and conducted the inventory later at a barangay hall in Quezon City—far from the place of arrest.

Tomawis was charged with violation of Section 5, Article II of RA 9165 (illegal sale of dangerous drugs). The Regional Trial Court convicted him, and the Court of Appeals affirmed. On appeal, the Supreme Court reversed and acquitted him.

The Issue

The central question was whether Tomawis's guilt was proven beyond reasonable doubt—specifically, whether the prosecution established the identity and integrity of the seized drugs through an unbroken chain of custody and compliance with Section 21.

The Ruling: Strict Compliance with Section 21

The Court ruled that Section 21 of RA 9165, as it stood in 2008 (before the amendment by RA 10640), imposed mandatory requirements on the apprehending team. These include:

1. Immediate inventory and photographing of seized drugs after seizure or confiscation
2. Three witnesses must be present: the accused or his representative/counsel, a representative from the media, a representative from the DOJ, and any elected public official
3. Proper venue: at the place of arrest, or at the nearest police station or office of the apprehending team if not practicable

The Court emphasized that the three witnesses must be physically present at or near the place of apprehension—not merely called in later to witness an inventory at a barangay hall. As the Court explained, their presence at the time of seizure is what protects against the police practice of planting evidence.

The Broken Chain of Custody

The prosecution also failed to establish an unbroken chain of custody. The testimonies of the arresting officers contained glaring inconsistencies:

• The poseur-buyer claimed she received the drugs from the accused and later delivered them to the laboratory
• Another officer claimed he recovered the drugs from the poseur-buyer
• Neither testified clearly on who held the drugs during transit, how they were transferred to the inventory officer, or who received them at the laboratory

The Court noted that the drug itself is the corpus delicti—the body of the crime—in drug cases. If its identity and integrity are in doubt, the conviction cannot stand.

Practical Takeaways

• The three-witness rule is mandatory. Law enforcers must bring media, DOJ, and elected official representatives to the arrest site, not summon them afterward.
• The chain of custody must be airtight. Every transfer of seized drugs—from seizure to laboratory to court—must be accounted for with clear testimony.
• Presumption of regularity is not a magic wand. Prosecutors cannot rely on it to excuse unexplained gaps in the handling of evidence.
• For accused persons: procedural lapses in drug cases can be grounds for acquittal, even where a sale allegedly occurred.
• For lawyers: challenge the prosecution's compliance with Section 21 and the chain of custody at every stage.

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