Title
Supreme Court
People vs. Rangaig y Ampuan
Case
G.R. No. 240447
Decision Date
Apr 28, 2021
Accused acquitted due to invalid warrantless arrest, double jeopardy, and broken chain of custody in drug possession case.

Case Summary (G.R. No. 240447)

Procedural History

Each appellant was charged under RA 9165 Sec. 13 (possession during a social gathering) and Sec. 11 (simple possession). The RTC convicted all three of both offenses (life imprisonment for social-gathering possession; reclusion temporal for simple possession). The CA affirmed. The appellants elevated the case to the Supreme Court.

Issues

  1. Whether charging and convicting appellants of both Sec. 11 and Sec. 13 offenses violated the double jeopardy clause (Art. II, Sec. 21, 1987 Constitution; Rule 117, Sec. 7).
  2. Whether the warrantless arrest and search were valid under Rule 113, Sec. 5.
  3. Whether the chain of custody rule (RA 9165 Sec. 21) was observed.

Double Jeopardy Analysis

Article II, Section 21 of the 1987 Constitution and Rule 117, Section 7 protect against multiple punishments for the same offense or same act. Sec. 13 (possession in a social gathering) expressly includes all elements of simple possession (Sec. 11) plus the presence of at least two other persons or a social gathering. Under the identity-of-offenses test, Sec. 11 is necessarily included in Sec. 13. Charging and convicting appellants separately under both provisions placed them twice in jeopardy for the same act. The correct remedy is acquittal for simple possession, leaving only the social-gathering count.

Warrantless Arrest and Search Analysis

The Constitution (Art. III, Sec. 2) requires a warrant based on probable cause, determined personally by a judge. Rule 113, Section 5(a) permits warrantless arrest only when the offense is committed in the officer’s presence. Here, officers relied solely on an informant’s tip and peeked through a slightly opened door from about ten meters away. They did not witness any overt act indicating an in-flagrante crime, nor did they have personal knowledge of a just-committed offense. Informant tips alone cannot justify warrantless entry, arrest, or search (People v. Yanson; People v. Martinez; People v. Bolasa). Consequently, the arrest was illegal ab initio, and the ensuing search and seizure inadmissible as fruits of the poisonous tree.

Chain of Custody Analysis

RA 9165 Sec. 21 mandates: immediate marking, inventory, and photographing of seized items in the presence of the accused (or counsel), DOJ or barangay representative, and media. Actual compliance—link by link—is required to prove that the drug offered in court is the same as seized. In this case:
• Marking was delayed until arrival at the station;
• No DOJ, barangay, or media representative witnessed





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