People v. Doria Dahil

Summary

The Supreme Court reversed the conviction of two accused for drug possession and sale, finding that law enforcement officers failed to comply with the chain of custody requirements under R.A. No. 9165. The Court identified critical procedural lapses including delayed inventory and marking not done immediately at the seizure site, conflicting testimony about photography, and gaps in custody transfers between officers. Despite the lower courts' findings of guilt, the Supreme Court held that these procedural deficiencies created reasonable doubt about the authenticity of the evidence, as the prosecution failed to establish an unbroken chain of custody from seizure to presentation in court. The decision reinforces the strict requirement that the integrity and evidentiary value of seized drugs must be preserved through proper procedural safeguards, emphasizing that substantial compliance with chain of custody rules is essential for conviction in dangerous drugs cases.