Chain of Custody in Drug Cases: How Objections Are Waived

In drug prosecutions, the integrity of the seized substance is often the whole case. If the police mishandle the drugs or fail to document the seizure properly, the accused may walk free. But a 2014 Supreme Court decision shows that these safeguards can be lost if the defense does not raise them at the right time and place.

The buy-bust operation

Acting on information from residents and a confidential asset, police officers from Talisay, Cebu conducted a buy-bust operation on September 30, 2002. A poseur-buyer, accompanied by the informant, approached Edwin Cabrera outside his house and gave him two marked fifty-peso bills. Cabrera allegedly handed over two plastic sachets of white crystalline substance.

The poseur-buyer gave the pre-arranged signal, back-up officers rushed in, and Cabrera was arrested. The officer marked the sachets with the initials "EC" and brought them to the PNP Crime Laboratory. A chemistry report later confirmed that the substance, weighing a total of 0.11 gram, tested positive for methylamphetamine hydrochloride, or shabu.

Cabrera pleaded not guilty. He claimed he had merely been asked by three men to buy shabu for them, and that he recognized the poseur-buyer as a policeman who conducted raids in his neighborhood. The trial court convicted him of selling dangerous drugs under Section 5, Article II of Republic Act No. 9165, and the Court of Appeals affirmed.

The chain-of-custody argument

Before the Court of Appeals, Cabrera argued that his guilt was not proven beyond reasonable doubt. Among his points was an alleged gap in the chain of custody: the drugs were confiscated at around 4:30 p.m., but were submitted to the crime laboratory only at 10:50 p.m. the same day.

The appellate court was not persuaded. It found that the arresting officer had immediately marked the sachets, requested a laboratory examination, and personally delivered the drugs to the crime laboratory on the same day. The identity of the drugs had been preserved and established.

The new argument on appeal

In his appeal to the Supreme Court, Cabrera raised a fresh objection. He claimed that the police failed to comply with Section 21 of the Implementing Rules of RA 9165, which requires the physical inventory and photographing of seized drugs in the presence of the accused, a media representative, a Department of Justice representative, and an elected public official.

The Supreme Court, in a resolution penned by Justice Del Castillo, refused to entertain the argument. The records showed that Cabrera never objected before the trial court on the ground that the police failed to maintain an unbroken chain of custody. He first questioned the chain of custody before the Court of Appeals, and even then on a different ground — the gap between confiscation and laboratory submission, not the absence of inventory or photographs.

The Court held that an objection to evidence cannot be raised for the first time on appeal. A party who wants the court to reject evidence must state the objection when the evidence is offered. Without such an objection, the question cannot be raised later. The Court also noted that any justifiable grounds excusing strict compliance with the inventory and photography requirements would remain unknown precisely because the defense stayed silent during trial.

Presumptions that favor the prosecution

The Court reiterated that the integrity of the seized evidence is presumed preserved unless there is a showing of bad faith, ill will, or proof of tampering. The accused bears the burden of making some showing that the evidence was tampered with, to overcome the presumption of regularity in the handling of exhibits by public officers.

In Cabrera's case, that burden was not met. The defense even admitted the existence, due execution, and genuineness of the laboratory request, the chemistry report, and the specimens submitted. The Court affirmed the conviction and the penalty of life imprisonment and a fine of P500,000, adding that Cabrera is not eligible for parole.

Practical takeaways

• Raise chain-of-custody objections at trial, not on appeal. A defect in the handling of seized drugs is generally waived if the defense does not object when the evidence is offered. Waiting until appeal is usually fatal to the argument.
• Be specific about the defect. Questioning the time gap between seizure and laboratory submission is not the same as questioning the absence of the required physical inventory and photographs. An objection on one ground does not preserve another.
• The prosecution enjoys a presumption of regularity. The identity and integrity of seized drugs are presumed preserved absent proof of tampering, bad faith, or ill will. The burden to rebut this presumption rests on the accused.
• Admissions can seal the case. Admitting the genuineness and due execution of the chemistry report and specimens strengthens the prosecution's position and undercuts later challenges to the evidence.
• Strict compliance with Section 21 is not automatic. Non-compliance may be excused on justifiable grounds, provided the integrity and evidentiary value of the seized items are preserved.

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