Manalili v. Court of Appeals

Summary

This landmark case established the validity of stop-and-frisk searches in Philippine jurisprudence as an exception to the constitutional warrant requirement. Police officers conducting anti-narcotics surveillance legally searched Alain Manalili after observing suspicious behavior indicative of drug use - red eyes and swaying gait near a known drug activity area. The Supreme Court upheld his conviction for illegal possession of marijuana residue, ruling that the warrantless search was justified when officers had reasonable suspicion of criminal activity. The Court emphasized that stop-and-frisk allows limited searches for officer safety and crime prevention when circumstances warrant investigation, even without probable cause for arrest. The decision modified the sentence to comply with the Indeterminate Sentence Law, demonstrating the Court's attention to proper sentencing procedures in drug cases.