Compromised Chain of Custody Leads to Acquittal in Drug Case

The Supreme Court has overturned the conviction of a man charged with illegal sale and possession of dangerous drugs, ruling that police officers' failure to secure required witnesses during the inventory of seized items compromised the integrity of the evidence. The case of People v. Bambico (G.R. No. 238617, November 14, 2018) serves as a reminder that the chain of custody rule is not a mere technicality but a matter of substantive law designed to protect the accused from potential police abuse.

The Facts of the Case

On the evening of September 25, 2011, members of the Navotas City Police Station conducted a buy-bust operation against Alvin Bambico y Carvajal. The police claimed that during the operation, they recovered one plastic sachet containing 0.03 gram of white crystalline substance from Bambico, and upon searching him after arrest, they seized two more sachets containing a combined weight of 0.05 gram of the same substance.

The police brought Bambico and the seized items to the barangay hall, where the marking, inventory, and photography were conducted in the presence of Barangay Chairman Totit Ocampo. The items were later brought to the crime laboratory, where they tested positive for methamphetamine hydrochloride, or shabu.

Bambico denied the charges. He claimed he was having dinner at a neighborhood eatery when he saw five policemen chasing someone toward his direction. When the policemen failed to catch the person they were chasing, they arrested him instead and brought him to the police station. He was later detained and transferred to jail.

The Issue

The central question before the Supreme Court was whether the prosecution had adequately preserved the integrity and evidentiary value of the seized drugs, given that the required witnesses under the chain of custody rule were not present during the inventory and photography of the items.

The Chain of Custody Rule

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 items must be conducted immediately after seizure. The law requires that the inventory and photography be done in the presence of the accused or his representative, as well as certain required witnesses: a representative from the media and the Department of Justice (DOJ), and any elected public official.

The presence of these witnesses is intended to ensure the establishment of the chain of custody and remove any suspicion of switching, planting, or contamination of evidence. The Court emphasized that compliance with this procedure is strictly enjoined, as it is a matter of substantive law, not merely a procedural technicality.

The Saving Clause and Its Limits

The Court recognized that strict compliance may not always be possible due to varying field conditions. However, for the saving clause to apply, the prosecution must prove two things: (1) there is a justifiable ground for non-compliance, and (2) the integrity and evidentiary value of the seized items are properly preserved.

The prosecution must also explain the reasons behind the procedural lapses. Mere statements of unavailability, absent actual serious attempts to contact the required witnesses, are not acceptable as justified grounds. Police officers are ordinarily given sufficient time—from receiving information about the accused's activities until the time of arrest—to prepare for a buy-bust operation and make necessary arrangements to comply with the chain of custody rule.

The Ruling

In this case, the inventory was conducted only in the presence of the barangay chairman. The poseur-buyer, Police Officer 1 Samuel T. Nombre, admitted on cross-examination that no DOJ representative was present during the inventory and that he did not coordinate with the DOJ after the operation. The absence of a media representative was left unacknowledged and unjustified.

The Court found this unjustified deviation from the chain of custody rule fatal to the prosecution's case. Since the integrity and evidentiary value of the seized items were compromised, the Court acquitted Bambico of the charges.

Practical Takeaways

• Witnesses are mandatory. The presence of required witnesses during inventory and photography is not optional. Police must secure the presence of a media representative, a DOJ representative, and an elected public official (or, after RA 10640, an elected public official and a representative of the National Prosecution Service or the media).
• Justifiable grounds must be proven. If witnesses are absent, the prosecution must present evidence of genuine and sufficient efforts to secure their presence. Unsubstantiated claims of unavailability will not suffice.
• Preparation is key. Police officers have time to prepare for buy-bust operations and should make arrangements for witnesses beforehand, knowing they must strictly comply with the chain of custody rule.
• The prosecution bears the burden. Even if the defense does not raise chain of custody issues at trial, the State has a positive duty to account for any lapses in the chain of custody of seized drugs.
• For the accused. A conviction may be overturned on appeal if the prosecution fails to prove the integrity of the seized drugs, even if the issue was not raised during trial.

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