People v. Chua

Summary

Binad Sy Chua was charged with illegal possession of shabu and ammunition after warrantless arrest by police operatives acting on informant's tip. The Regional Trial Court convicted him for drug possession but acquitted on ammunition charges. On appeal, the Supreme Court reversed the conviction and acquitted Chua, ruling that the warrantless arrest and search were unconstitutional. The Court found that police lacked probable cause for in flagrante delicto arrest since accused exhibited no overt criminal act, and that stop-and-frisk principles didn't apply since arrest preceded search. Significantly, police had monitored accused for two years, making their failure to obtain warrant unjustifiable. The decision emphasized that constitutional protections against unreasonable searches and seizures cannot be disregarded in anti-drug operations, and illegally obtained evidence must be excluded regardless of law enforcement's good intentions.