A 27-year-old police officer landed in jail after he was caught leading three other robbers who victimized businessmen Apolinario Ylaga and his wife Guillerma on Tuesday. The suspect was identified as Police Officer Argel Nabor, currently assigned at Northern Police Disrict. The group of Nabor flagged the couple down at the corner of Quirino Avenue and Roxas Boulevard and grabbed a handbag containing P200,000 cash and assorted jewelry. Policemen recovered the handbag and Nabor was detained at Police Station 9. His accomplices fled.