Dumka: Jamtara district police have detained a juvenile in connection with a series of robbery and theft cases reported across the district as well as in West Bengal, police said.SP Shambhu Kumar Singh said, “A team detained the accused and seized a country-made 7.65 mm pistol along with a live cartridge during a search operation.”“The juvenile was involved in a recent robbery near the cemetery at Dhekipara under the Mihijam police station area, where railway employee Irfan Ansari was allegedly threatened with a knife and robbed. He was also found involved in a snatching incident in Fatehpur area under Chittaranjan police station in West Bengal.”“The juvenile was detained in a March 2025 firing incident. He was released on bail but returned to criminal activities,” the SP said.A two mobile phones, a bike, a damaged bag and a knife from him.