Mar 7, 2018criminal-lawdrugschain-of-custodybuy-bustra-9165evidence

Compromised Evidence Safeguarding Drug Integrity IN Anti Drug Operations

When police fumble the chain of custody, drug convictions fail. A 2018 Supreme Court ruling shows why procedure matters.


In drug cases, the seized substance is the heart of the prosecution's case. If police mishandle it, the entire case collapses. In People v. Sanchez (G.R. No. 231383, March 7, 2018), the Supreme Court acquitted an accused because law enforcers failed to follow the required procedure for preserving seized drugs. The ruling is a reminder that even in the war on drugs, the Bill of Rights still protects every individual.

The Facts

On July 29, 2010, PDEA and PNP operatives conducted a buy-bust operation against Joey Sanchez at the Bacnotan Public Market in La Union. The poseur-buyer purchased one sachet of shabu for P500, and a subsequent search yielded two more sachets. The team conducted the marking, inventory, and photography at the arrest site. They later had representatives from the Department of Justice and the media sign the Certificate of Inventory at their office. Notably, no elected public official was present during the inventory.

Sanchez was charged with illegal sale and illegal possession of dangerous drugs under Sections 5 and 11, Article II of Republic Act No. 9165. Both the trial court and the Court of Appeals convicted him. On appeal, the Supreme Court reversed.

The Issue

The central question was whether the prosecution had proven an unbroken chain of custody over the seized drugs, preserving their integrity and evidentiary value.

The Ruling

The Supreme Court acquitted Sanchez. The Court found that the arresting officers committed unjustified deviations from the chain of custody rule under Section 21, Article II of RA 9165.

Why the Procedures Matter

Section 21 requires that after seizure, the apprehending team must conduct a physical inventory and photograph the seized items in the presence of: (1) the accused or his representative or counsel; (2) a representative from the media; (3) a representative from the DOJ; and (4) any elected public official. These witnesses must sign the inventory.

The law requires these witnesses to be present during the actual conduct of the inventory and photography. In this case, the officers conducted the inventory at the arrest site, then merely had the DOJ and media representatives sign the Certificate of Inventory later at the office. Worse, no elected public official was present at all.

The "Rush Operation" Excuse Was Not Enough

The Court acknowledged that strict compliance is not always possible under field conditions. However, non-compliance may be excused only if the prosecution proves: (1) a justifiable ground for the deviation; and (2) that the integrity and evidentiary value of the seized items were preserved.

Here, the arresting officer claimed they could not secure an elected official because it was a "rush operation." The Court rejected this excuse. Mere statements of unavailability are not enough. The prosecution must show that earnest efforts were made to secure the required witnesses. As the Court noted in People v. Umipang, a sheer statement that representatives were unavailable, without explaining whether serious attempts were made to find other representatives, is a "flimsy excuse."

The Court emphasized that police officers usually have time to prepare for buy-bust operations. They know in advance that they must comply with Section 21. They cannot simply claim a rush operation to excuse their failure.

Practical Takeaways

  • Chain of custody is critical. In drug cases, the prosecution must prove the identity of the seized drugs with moral certainty. Any break in the chain can doom the case.
  • Witnesses must be present during the actual inventory. It is not enough to have DOJ and media representatives sign a certificate later at the office. They must witness the marking and inventory on site.
  • "Rush operation" is not a magic excuse. Police must show earnest efforts to secure all required witnesses, including an elected public official. Unexplained deviations will not be excused.
  • Prosecutors must prove compliance. They have a positive duty to justify any deviation from Section 21, even if the defense does not raise the issue.
  • Acquittal is the remedy. When the integrity of the corpus delicti is compromised, the State fails to prove guilt beyond reasonable doubt, and the accused must be acquitted.

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

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