Dec 5, 2022criminal-lawsearch-warrantwarrantless-arrestplain-view-doctrinechain-of-custodyra-9165

Probable Cause Prevails Warrantless Arrest Upheld Despite Acquittal IN Underlying Crime

A defective search warrant cannot justify a warrantless arrest or the seizure of evidence, even if the accused waives objections to the arrest itself.


The Supreme Court's recent ruling in Mendoza v. People clarifies an important point in criminal procedure: a person who waives the right to question an illegal arrest does not automatically waive the right to challenge the admissibility of evidence seized during that arrest. The case also reinforces the strict "one-specific-offense" rule for search warrants and the mandatory chain of custody requirements under the Comprehensive Dangerous Drugs Act.

The Facts of the Case

In April 2016, police operatives in Makati City implemented a search warrant against a certain Jay Tan for violations of the Comprehensive Dangerous Drugs Act (RA 9165) and the Comprehensive Firearms and Ammunitions Regulation Act (RA 10591). The warrant was issued by a Regional Trial Court in Malabon City.

Upon breaking into the house, the officers found Joemarie Mendoza sitting on the floor of a room, holding a pen gun, with a plastic sachet of shabu and two improvised tooters in front of him. Mendoza was arrested on the spot. The officers later opened a vault and found more drugs, firearms, and ammunition.

Mendoza was charged with illegal possession of dangerous drugs and drug paraphernalia. He was convicted by the Regional Trial Court and the Court of Appeals affirmed the conviction.

The Issue

The central question before the Supreme Court was whether the search warrant was valid, and if not, whether the evidence seized from Mendoza was admissible despite his failure to object to the legality of his arrest before arraignment.

The Ruling

The Supreme Court reversed Mendoza's conviction and ordered his acquittal. The Court ruled on three main grounds.

First, the search warrant was void for violating the one-specific-offense rule. The Revised Rules of Criminal Procedure require that a search warrant be issued in connection with one specific offense. The warrant in this case covered two separate offenses—violations of RA 9165 and RA 10591. This made it a "scatter-shot warrant," which is totally null and void. The Court rejected the argument that the invalid portions could be severed from the valid ones, noting that the evil sought to be avoided cannot be delineated after the fact of implementation.

Second, the plain view doctrine did not apply. For the plain view doctrine to justify a warrantless seizure, the law enforcement officer must have a prior justification for the intrusion. Here, the police officers were only able to see Mendoza because they were inside the premises under the authority of an invalid search warrant. Since the warrant was void, the officers had no lawful right to be in that position, and the plain view doctrine could not save the seizure.

Third, waiver of the arrest does not waive the inadmissibility of evidence. The Court acknowledged that Mendoza had waived his right to question the legality of his arrest by failing to raise it before arraignment. However, citing Dominguez v. People, the Court emphasized that this waiver only affects the court's jurisdiction over the person of the accused. It does not carry with it a waiver of the inadmissibility of evidence seized during an illegal warrantless arrest.

Fourth, the chain of custody rule was violated. Under Section 21 of RA 9165, as amended, the physical inventory and photography of seized drugs must be conducted in the presence of the accused or his representative, along with an elected public official and a representative of the National Prosecution Service or the media. In this case, no such witnesses were present, and the prosecution offered no explanation for the non-compliance. The Court noted that the police had ample time to arrange for these witnesses, given that they had time to apply for a search warrant.

Practical Takeaways

  • A search warrant must be issued for one specific offense only. A warrant covering multiple offenses is void and cannot be salvaged by severing its "valid" portions.
  • The plain view doctrine requires a lawful intrusion. If police are only able to see evidence because of an invalid warrant, the doctrine cannot apply.
  • Failing to object to an illegal arrest before arraignment waives that objection, but it does not waive the right to challenge the admissibility of evidence seized during the arrest.
  • The chain of custody requirements under RA 9165 are mandatory. Non-compliance may be excused only if the prosecution proves genuine and sufficient efforts to secure the required witnesses.
  • Evidence obtained through an invalid search warrant is inadmissible, even if the accused was caught in flagrante delicto during the search.

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.