Title
People vs. Ma. Del Pilar Rosario C. Casa a.k.a. "Marfy Calumpang," "Madam," and "Mah-Mah"
Case
G.R. No. 254208
Decision Date
Aug 16, 2022
Accused acquitted due to prosecution's failure to comply with chain of custody rules, compromising evidence integrity in drug charges.

Case Summary (G.R. No. 254208)

Facts of the Buy-Bust Operation

– CI tipped off SOG-NOPPO that “Mah-mah” was selling shabu in Barangay Cadawinonan Housing Project.
– SPO4 Germodo assigned PO1 Delbo as poseur-buyer; backup by PO1 Archimedes Olasiman and PO3 Rulymar Laquinon.
– At circa 3:50 p.m., PO1 Delbo and CI entered the project. The rest of the team positioned nearby.
– PO1 Delbo purchased one marked sachet (0.13 g) of shabu for ₱500; placed call to SPO4 Germodo; announced authority; arrested Casa.
– During arrest, PO1 Delbo confiscated a plastic container holding eleven sachets (approx. 10.99 g) of shabu.

Seizure, Marking, Inventory, Photographing

– Marking: PO1 Delbo placed initials “MC-BB 7/21/15” on bought sachet and “MC-P1 7/21/15” to “MC-P11 7/21/15” on the other sachets.
– Inventory & Photography: Conducted at SOG office in presence of accused-appellant, Barangay Captain Binondo, DOJ and media representatives. Copies of inventory signed by insulating witnesses; accused-appellant’s presence not noted.

Chain of Custody Requirements (Sec. 21, RA 9165, as amended)

  1. Immediately after seizure and confiscation, conduct physical inventory and photograph evidence in presence of:
    • Accused (or representative)
    • Elected public official
    • Representative of National Prosecution Service or media
    (All insulating witnesses must sign inventory and receive a copy.)
  2. Inventory location:
    • Where search warrant served; or
    • Nearest police station or apprehending team’s office, whichever is practicable, for warrantless seizures
  3. Saving clause: Non-compliance under justifiable grounds does not invalidate seizure if integrity and evidentiary value are preserved.

Fourth Link Defect and Unjustified Venue Change

– The fourth link (forensic handling) was not properly established: stipulations omitted details on storage, sealing, and preservation from receipt by Chemist Llena until court presentation.
– Inventory and photographing were shifted from arrest site to the SOG office for generic “security reasons” without detailed justification.
– Court rulings require inventory venue to be either the site of arrest or, for warrantless seizures, the nearest police station or team office when justified by specific threats or impracticabilities. Mere “security” or “crowd” explanations are insufficient.

Elements of Illegal Sale & Possession Not Proven Beyond Reasonable Doubt

– Illegal Sale (Sec. 5): Requires proof of actual sale transaction, identity of parties, object, and consideration. Only PO1 Delbo testified—no backup officer witnessed the sale; testimony uncorroborated and lacking detail.
– Illegal Possession (Sec. 11): Requires proof of conscious and voluntary possession. Discrepancies

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