Chain of Custody in Drug Cases: Why Missing Witnesses Can Overturn a Conviction

The Supreme Court has once again underscored the strict requirements of the chain of custody rule in drug cases. In People v. De Motor y Dantes (G.R. No. 245486, November 27, 2019), the Court acquitted an accused because the prosecution failed to justify the absence of a Department of Justice (DOJ) representative during the inventory and photography of seized drugs. The ruling is a timely reminder that procedural lapses in handling evidence can be fatal to the State's case, even when the accused is caught with illegal drugs.

The Facts of the Case

On August 13, 2012, police officers in Lipa City conducted a buy-bust operation against Ronald Jaime De Motor y Dantes at a Jollibee branch. The officers recovered five sachets of dried marijuana leaves during the operation and four more sachets from his pocket upon frisking. The police marked the nine sachets and brought the accused to their headquarters.

At the police station, the officers conducted an inventory and took photographs of the seized items. The inventory was witnessed by the accused himself, the Barangay Captain, and a representative from a radio station. However, no representative from the DOJ was present. The seized items were later tested positive for marijuana.

The Issue Before the Court

The central question was whether the prosecution sufficiently proved the identity and integrity of the seized drugs despite the absence of a DOJ representative during the inventory. The accused argued that the chain of custody rule was violated, warranting his acquittal.

The Chain of Custody Rule Under RA 9165

Under Section 21, Article II of Republic Act No. 9165 (the Comprehensive Dangerous Drugs Act of 2002), the marking, physical inventory, and photography of seized drugs must be conducted immediately after seizure. These procedures must be done in the presence of the accused or his representative, and certain required witnesses.

Before the amendment by RA 10640, the law required the presence of a representative from the media and the DOJ, plus any elected public official. After the amendment, the requirement became an elected public official and a representative of the National Prosecution Service or the media.

The presence of these witnesses is not a mere formality. The Court has repeatedly held that these requirements were crafted by Congress as safety precautions to address potential police abuses, especially considering that the penalty for drug offenses may be life imprisonment.

The Saving Clause and Its Limits

The Court acknowledged that strict compliance may not always be possible due to varying field conditions. The saving clause in the law allows non-compliance if the prosecution proves: (a) there was a justifiable ground for the non-compliance, and (b) the integrity and evidentiary value of the seized items were properly preserved.

However, the Court emphasized that the prosecution must duly explain the reasons behind the procedural lapses. The justifiable ground must be proven as a fact — the Court cannot presume what these grounds are or that they even exist. Mere statements of unavailability, without actual serious attempts to contact the required witnesses, are unacceptable.

The Court's Ruling

In this case, the inventory was witnessed only by an elected public official and a media representative. The DOJ representative was absent. When the arresting officer was cross-examined, he admitted that no DOJ representative came to the police station, but he offered no explanation for this lapse. The prosecution also failed to conduct a re-direct examination to address the oversight.

The Court ruled that this unjustified deviation from the chain of custody rule compromised the integrity and evidentiary value of the seized items. Consequently, the accused was acquitted of both illegal sale and illegal possession of dangerous drugs.

The Court also cited People v. Miranda as a definitive reminder to prosecutors: the State has a positive duty to account for any lapses in the chain of custody, regardless of whether the defense raises the issue. Otherwise, the conviction risks being overturned on appeal.

Practical Takeaways

• Witnesses are mandatory. The presence of required witnesses during inventory and photography is a substantive requirement, not a mere technicality.
• Explain any lapse. If a required witness is absent, the prosecution must present a justifiable reason and prove genuine efforts to secure the witness's presence.
• Act proactively. Police officers are given sufficient time to prepare for buy-bust operations. They should make arrangements to secure witnesses beforehand.
• Prosecutors must be vigilant. The State must account for any lapses even if the defense does not raise them at trial.
• For the accused. A conviction may be overturned if the prosecution fails to prove the integrity of the seized drugs, even if the accused was caught in flagrante.

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