Title
People vs. Rosa Aruta y Menguin
Case
G.R. No. 120915
Decision Date
Apr 3, 1998
Rosa Aruta acquitted after Supreme Court ruled warrantless search unconstitutional, rendering seized marijuana inadmissible as evidence.

Case Summary (G.R. No. 120915)

Key Dates

December 13–14, 1988: Informant’s tip; surveillance and arrest
December 14, 1988: Seizure of approximately 8.5 kg marijuana
1989–1990: Trial proceedings in Regional Trial Court, Olongapo City
April 3, 1998: Decision of the Supreme Court

Facts of the Case

– On December 13, 1988, NARCOM received information that “Aling Rosa” would arrive the next day from Baguio City carrying a large quantity of marijuana.
– A surveillance team (Abello, Domingo, Sudiacal, Imperial, Santiago, Quirubin) stationed near the bus unloading area at around 4:00 PM on December 14.
– At approximately 6:30 PM, a Victory Liner bus arrived. The informant identified Rosa Aruta carrying a traveling bag.
– Upon approach, officers introduced themselves, requested to see the bag, and Aruta handed it over. Inside were plastic-wrapped dried marijuana leaves marked “Cash Katutaka.”
– The bag and bus ticket were confiscated; specimens tested positive for marijuana at the PC/INP Crime Laboratory.

Trial Court Proceedings

– Arraignment: Aruta pleaded not guilty.
– Prosecution rested on officers’ testimony and forensic report.
– Defense filed a demurrer to evidence, alleging unconstitutional search and seizure; the court denied without ruling on merits.
– Aruta testified she had been asked by an elderly woman to carry a bag and was then accosted without a warrant, observed no search warrant, and could not identify the woman.
– Defense objected to admissibility of seized items; the trial court convicted Aruta for transporting prohibited drugs, imposed life imprisonment and a ₱20,000 fine.

Issues on Appeal

  1. Whether NARCOM agents could lawfully search a vehicle or passenger without a warrant.
  2. Whether courts would have issued a search warrant or deemed it defective.
  3. Whether the warrantless search and seizure violated constitutional rights against unreasonable searches and seizures.
  4. Comparative strength of the defense denial versus prosecution evidence.

Constitutional Framework on Search and Seizure

– Article III, Section 2 of the 1987 Constitution guarantees security against unreasonable searches and seizures and mandates that warrants issue only upon probable cause, determined personally by a judge, with particular descriptions of place and items.
– Article III, Section 3(2) excludes from evidence any material obtained in violation of these provisions (exclusionary rule).

Recognized Exceptions to Warrant Requirement

  1. Search incidental to lawful arrest (Rule 126, Sec. 12, Rules of Court)
  2. Plain-view doctrine (valid intrusion, inadvertent discovery, immediately apparent evidence)
  3. Search of moving vehicles (reduced expectation of privacy)
  4. Voluntary consent
  5. Customs searches
  6. Stop-and-frisk
  7. Exigent or emergency circumstances

Standards for Probable Cause

– Must be based on reasonable grounds of suspicion or belief, supported by circumstances that would lead a prudent person to conclude an offense is being or has been committed.
– In warrantless searches, officers may rely on informant tips only when accompanied by additional observable factors (suspicious behavior, circumstances of tip).

Analysis of Probable Cause and Exceptions

– Informant’s tip was specific as to person, date, vehicle and contraband, yet officers had ample opportunity to secure a warrant.
– Aruta exhibited no suspicious conduct before being confronted; she was off a public bus and merely crossing the street.
– No exigent circumstance existed; the contraband was not in plain view until the bag was opened.
– The moving-vehicle exception did not apply because the search occurred after Alita disembarked.
– No lawful consent: mere handing over of the bag under authority did not constitute voluntary waiver of constitutional rights.

Legality of Arrest and Search

– Under Rule 113, Section 5, arrest without warrant is lawful only when the offense is committed or attempting to be committed in the officer’s presence;



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