VALID WARRANTLESS ARRESTS:

     Section 5, above, provides three (3) instances when warrantless arrest may be lawfully effected: (a) arrest of a suspect in flagrante delicto; (b) arrest of a suspect where, based on personal knowledge of the arresting officer, there is probable cause that said suspect was the perpetrator of a crime which had just been committed; (c) arrest of a prisoner who has escaped from custody serving final judgment or temporarily confined during the pendency of his case or has escaped while being transferred from one confinement to another. (MARGARITA AMBRE Y CAYUNI VS. PEOPLE, G.R. NO. 191532, AUGUST 15, 2012, MENDOZA, J.)