People v. Evaristo

Summary

This criminal case involved the prosecution of Santiago Evaristo and Noli Carillo for illegal possession of firearms under Presidential Decree No. 1866. PC officers pursuing a gunman discovered firearms on both accused - a .38 revolver on Carillo during a frisk and additional firearms inside Evaristo's house. The Supreme Court affirmed their conviction, establishing important precedents on warrantless searches and seizures in criminal cases. The Court validated the plain view doctrine for evidence discovered with the owner's permission and confirmed that warrantless arrests are justified when officers hear gunfire and pursue suspects. The decision clarified that P.D. 1866 applies to all firearms regardless of functionality, rejecting the defense argument about non-serviceable weapons. This case demonstrates the balance between constitutional protections against unreasonable searches and law enforcement's duty to investigate firearms violations, while reinforcing the strict liability nature of illegal firearms possession under Philippine law.