Uy vs. People

The chain of custody procedure under Section 21, Article II of Republic Act No. 9165 is substantive law; a total failure to prepare an inventory report and to conduct the physical inventory and photographing of seized drugs in the presence of the accused and the required insulating witnesses renders the seized evidence inadmissible and negates proof of the corpus delicti beyond reasonable doubt. Where no inventory is accomplished, the presence of the witnesses cannot be deemed satisfied, and a conviction based on such evidence cannot stand.

On April 6, 2004, Philippine National Police officers established a mobile checkpoint at Purok 4, Sitio Paso, Barangay Mabuhay, San Fernando, Bukidnon, in implementation of COMELEC Resolution No. 6446 imposing a gun ban for the May 10, 2004 elections. At around 5:45 p.m., petitioner was flagged down while riding a red motorcycle. He could not produce the Certificate of Registration and Official Receipt for the vehicle, raising the officers’ suspicion that the motorcycle might be stolen. Upon further inspection, the officers noticed a plastic cellophane protruding from the tools compartment, which upon opening yielded five bundles of dried marijuana. A subsequent search of the compartment under the driver’s seat revealed additional bundles. Petitioner was arrested, brought to the police station, and later subjected to a drug test that indicated marijuana use. The seized marijuana was submitted to the PNP Crime Laboratory and tested positive for the substance.

• The Checkpoint Encounter: On the afternoon of April 6, 2004, PNP personnel of San Fernando, Bukidnon, set up a mobile checkpoint at Sitio Paso, Barangay Mabuhay, to enforce the COMELEC gun ban under Resolution No. 6446. At approximately 5:45 p.m., petitioner, driving a red motorcycle, was flagged down for a routine inspection. The officers asked for the Certificate of Registration and Official Receipt of the motorcycle, which petitioner failed to produce.

• The Search and Seizure: The officers noticed a transparent plastic cellophane protruding from the tools compartment. When asked to open the compartment, petitioner yielded five bundles of dried marijuana wrapped in cellophane. After initially refusing, he was also made to open the compartment under the driver’s seat, where additional bundles of marijuana were found. In total, 248 grams of marijuana flowering tops were seized.

• Post-Arrest Proceedings: Petitioner was taken to the police station, interviewed, and the confiscated dried marijuana leaves were marked. The specimens were transported to the PNP Crime Laboratory in Malaybalay City, where PCI April Madroño confirmed the substance tested positive for marijuana. Petitioner’s urine sample also returned a positive result for drug use.

• Defense Version: Petitioner, as the sole defense witness, denied the accusations. He testified that he was on his way to deliver medicines when his motorcycle had a flat tire. Armed men in civilian clothes arrived, searched his bag without finding contraband, asked for his license and registration which he could not produce, and arrested him. At the police station, he was photographed with the motorcycle, struck with a rifle butt, and later asked to produce P10,000.00 to avoid detention. He claimed the marijuana was taken from the tools compartment only after his arrest and was not his.

• RTC Findings: The RTC gave full faith and credit to the testimonies of the apprehending officers, finding no improper motive. It ruled that the warrantless search was justified as incidental to a lawful arrest and that petitioner failed to prove any license to possess the marijuana.

• CA Findings: The CA affirmed the conviction but noted that petitioner had waived any objection to the illegality of his arrest by failing to raise it before arraignment and by actively participating in the trial. The CA modified the penalty because Section 36(f) of R.A. No. 9165, which had been the basis for the RTC’s sentence, was declared unconstitutional in Social Justice Society v. Dangerous Drugs Board. Consequently, the positive urine test could not be used as evidence.

• Invalidity of Warrantless Search and Arrest: Petitioner argued that his right to privacy was violated because the search did not fall under any recognized exception to the warrant requirement. He maintained that the police had no probable cause to believe he was committing a crime: he was not doing anything illegal, there was no prior positive identification, and nothing was in plain view to engender a well-founded belief of criminal activity.

• Absence of Probable Cause for Arrest: Petitioner contended that the arrest could not be justified under Section 5, Rule 113 of the Rules of Court, as the circumstances did not indicate he had committed, was committing, or was about to commit an offense. The mere implementation of a COMELEC gun ban checkpoint did not supply the requisite probable cause.

• Validity of Warrantless Search: Respondent maintained that the warrantless search was valid either as a search incidental to a lawful arrest or as a search of a moving vehicle at a lawful checkpoint, given that petitioner’s failure to produce the vehicle’s documents gave rise to reasonable suspicion that the motorcycle was stolen or that a crime was being committed.

• Compliance with Chain of Custody: Respondent argued that the integrity and evidentiary value of the seized marijuana were preserved and that the prosecution had established all elements of the offense beyond reasonable doubt.

• Validity of the Warrantless Search and Arrest: Whether the warrantless search of petitioner’s motorcycle at a COMELEC checkpoint and his subsequent arrest were lawful under the constitutional guarantee against unreasonable searches and seizures.

• Compliance with the Chain of Custody Rule: Whether the prosecution sufficiently complied with the chain of custody requirements under Section 21, Article II of Republic Act No. 9165, and whether any non-compliance affected the admissibility and probative value of the seized drugs.

• Validity of the Warrantless Search and Arrest: The warrantless search was upheld as an exercise of police authority over moving vehicles at a checkpoint. Checkpoints are not illegal per se so long as they are justified by public order and conducted in the least intrusive manner. While routine inspections are limited to visual searches, an extensive search of a vehicle is valid when the officers have probable cause to believe that the vehicle contains instrumentalities or evidence of a crime. Here, petitioner’s inability to produce the motorcycle’s registration documents generated suspicion that the vehicle might be stolen. Further, the plain view of a plastic cellophane protruding from the tools compartment, consistent with drug packaging, supplied the probable cause necessary to conduct a more thorough search. The arrest that followed was thus incidental to a valid search based on probable cause. The validity of the arrest itself was, moreover, deemed waived because petitioner failed to object before arraignment.

• Compliance with the Chain of Custody Rule: The prosecution’s evidence was fatally deficient. Section 21 of R.A. No. 9165 and its implementing rules require the apprehending officers to immediately conduct a physical inventory and photograph the seized drugs in the presence of the accused (or representative/counsel), a media representative, a DOJ representative, and an elected public official. These requirements are substantive in nature. The records showed a total lack of compliance: no inventory report was ever prepared or mentioned in any transmittal document. Because no inventory was conducted, the required presence of the insulating witnesses could not be deemed satisfied. The absence of an inventory and the failure to observe the procedure under Section 21 rendered the identity and integrity of the corpus delicti seriously uncertain. A conviction could not rest on such tainted evidence.

• Chain of Custody as Substantive Law — The procedure under Section 21, Article II of R.A. No. 9165 is a matter of substantive law, not a mere procedural technicality. Strict compliance is mandated, and a total failure to prepare the required inventory report and to conduct the inventory and photographing in the presence of the accused and the specified insulating witnesses violates the law and destroys the evidentiary integrity of the seized items. Justifiable non-compliance is excused only if the integrity and evidentiary value of the seized evidence were preserved; absent an inventory, such preservation cannot be demonstrated.

• Warrantless Search of Moving Vehicles at Checkpoints — Checkpoints are not unconstitutional per se provided they are justified by exigencies of public order and are conducted with minimal intrusion. A routine inspection is limited to a visual search without physical or body search. However, once probable cause arises—such as suspicious behavior, inability to produce vehicle documents, or plain view of contraband—a more extensive warrantless search of the vehicle becomes permissible, as the mobility of motor vehicles reduces reasonable expectations of privacy and makes securing a warrant impracticable.

• Probable Cause for Extensive Checkpoint Searches — For a vehicle stopped at a checkpoint to be subjected to an extensive search, the officers must have reasonable or probable cause, prior to the search, to believe that they will find instrumentalities or evidence pertaining to a crime within the vehicle. Failure to produce registration documents or the plain view of suspicious items can collectively constitute such probable cause.

• Waiver of Objections to Illegality of Arrest — Any objection to the legality of a warrantless arrest is deemed waived if not raised before arraignment. Active participation in trial constitutes voluntary submission to the court’s jurisdiction and cures any defect in the arrest.

• Effect of Unconstitutionality of Section 36(f) of R.A. No. 9165 — Drug test results from samples taken without valid legal basis, pursuant to a provision later struck down as unconstitutional, cannot be used as evidence against the accused.

• "The procedure laid out in Section 21, Article II of RA 9165 is considered substantive law and not merely a procedural technicality. The law requires that the police authorities implementing RA 9165 strictly comply with the chain of custody procedure, although failure to strictly do so does not, ipso facto, render the seizure and custody over the illegal drugs as void and invalid if: (a) there is justifiable ground for such noncompliance; and (b) the integrity and evidentiary value of the seized evidence were preserved."

• "In this case however, there was total lack of compliance. A review of the pieces of evidence submitted by the parties show that an inventory report was not accomplished by any of the police officers. In fact, an inventory report was never mentioned in all the transmittal documents accomplished by the concerned authorities. Absent the inventory report, the required presence of the insulating witnesses cannot be considered to have been complied with."

• "Highly regulated by the government, the vehicle's inherent mobility reduces expectation of privacy especially when its transit in public thoroughfares furnishes a highly reasonable suspicion amounting to probable cause that the occupant committed a criminal activity."

• Caballes v. People, 424 Phil. 263 (2002) — Set forth the doctrine on the validity of warrantless searches of moving vehicles; relied on to justify the search of petitioner’s motorcycle after the checkpoint stop based on reduced expectation of privacy and practicability of obtaining a warrant.

• People v. Manago, 793 Phil. 505 (2016) — Cited on the constitutional mandate that searches and seizures must be conducted by warrant based on probable cause, and on instances when warrantless arrests are lawful under Rule 113, Section 5 of the Rules of Court.

• People v. Sapla, G.R. No. 244045, June 16, 2020 — Reiterated that checkpoints are not illegal per se, and that visual inspections at checkpoints are permissible so long as least intrusive; further extensive searches require probable cause.

• People v. Vinecario, 465 Phil. 192 (2004) — Applied as authority that vehicles may be stopped and extensively searched when probable cause justifies a reasonable belief that the motorist is an offender or the vehicle contains instruments of a crime.

• People v. del Rosario, G.R. No. 235658, June 22, 2020 — Defined chain of custody and emphasized the requirement that inventory and photographing be done in the presence of the accused and the three insulating witnesses.

• People v. Tomawis, 830 Phil. 385 (2018) — Declared that Section 21 of R.A. No. 9165 is substantive law, and failure to strictly comply renders the seized items inadmissible unless justifiable grounds exist and integrity is preserved.

• Section 2, Article III, 1987 Constitution — Guarantees the right against unreasonable searches and seizures and requires a judicial warrant based on probable cause; the Court used this as the baseline for testing the validity of the checkpoint search and found the warrantless search justified by the moving vehicle doctrine.

• Section 5, Rule 113, Rules of Court — Enumerates instances of lawful warrantless arrests; although the arrest was upheld as incidental to a valid search, petitioner’s failure to timely object was deemed a waiver.

• Section 11, Article II, Republic Act No. 9165 — Defines and penalizes illegal possession of dangerous drugs; the offense charged.

• Section 21, Article II, Republic Act No. 9165 — Prescribes the chain of custody procedure for seized drugs; the total failure to prepare an inventory and secure the presence of the required witnesses was held to be a violation of substantive law, resulting in the failure to establish the corpus delicti.

• COMELEC Resolution No. 6446 — Imposed the gun ban during the 2004 election period and provided the initial basis for the establishment of the checkpoint.

Associate Justices Estela M. Perlas-Bernabe (Chairperson), Rodil V. Zalameda, Ricardo R. Rosario, and Jose Midas P. Marquez, concurred.

None.