Title
Sio vs. People
Case
G.R. No. 224935
Decision Date
Mar 2, 2022
Police searched wrong address, seized unlisted items, and failed to comply with RA 9165 procedures, rendering evidence inadmissible; charges dismissed.

Case Summary (G.R. No. 224935)

Execution of the Warrant and Seizure of Evidence

On October 24, 2010, PNP-AIDSOTF operatives executed the warrant at “Purok 3A, Barangay Dalahican,” seizing an undetermined quantity of suspected shabu (later confirmed by PNP lab), a .45 Remington pistol with ammunition, two magazines, and vehicles bearing plates XPX-792 and ZRY-758.

Trial Court Proceedings: Omnibus Motion

Sio filed an omnibus motion challenging the warrant’s validity—citing wrong address, nonexistence or misregistration of listed vehicles, absence of PDEA operatives, and alleged evidence planting. The RTC denied the motion on May 7, 2013, finding probable cause to issue an arrest warrant and ordering Sio’s arrest. A motion for reconsideration was likewise denied.

Court of Appeals Review

By certiorari under Rule 65, Sio alleged grave abuse of discretion by the RTC. The CA held that the trial judge had independently examined the records, properly determined probable cause, and acted within jurisdiction. The CA dismissed the petition on November 27, 2015, and denied reconsideration on May 10, 2016.

Supreme Court Petition for Review on Certiorari

Sio’s Rule 45 petition urged that warrant implementation deviated from law: the PNP-AIDSOTF acted without PDEA, media, or barangay representatives; entry occurred three hours before these witnesses arrived; the lawful occupant was absent during the inventory. He argued these irregularities rendered the search unreasonable and the seized evidence inadmissible, thus negating probable cause.

Issues for Resolution

  1. Whether the warrant’s implementation was unreasonable, making the seized evidence inadmissible
  2. Whether, absent that evidence, probable cause existed for the Informations

Constitutional and Statutory Search Warrant Requirements

Under the 1987 Constitution (Art. III, Sec. 2) and Rule 126, Sec. 4, warrants must be issued upon personal judicial determination of probable cause, and must particularly describe the place to be searched and items to be seized, limiting law enforcement discretion.

Implementation Irregularities and Scope Enlargement

The warrant specified Ilaya Ibaba, Purok 34, and vehicles ZYR-468 and ZGS-763. In practice, police searched Purok 3A and seized vehicles XPX-792 and ZRY-758. Such deviations from the warrant’s text constitute an unlawful expansion of scope, depriving Sio of constitutional protections and facilitating possible abuse or planting of evidence.

Chain of Custody under RA 9165

Section 21 of RA 9165 mandates that immediately after seizure, drugs be inventoried and photographed in the presence of the accused (or representative), media, DOJ representative, and an elected public official, at the place of service. Here, required witnesses arrived only three hours later—or not at all (no DOJ rep)—undermining the integrity of the corpus delicti and violat

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