Staff Reporter :The Detective Branch in separate drives arrested seven persons, four robbers and three arms traders, from different parts of the city on Saturday night and Sunday.The robbers were identified as Mostaq, Sohel, Russel and Razu while the arms traders were Moshiur Rahamn alias Tozammel, Jewel Rana and Alamin. Police seized at least six pistols, eight magazines, and 39 round bullets and Tk 45,000 in cash from their possession during the drive. Dhaka Metropolitan Police’s (DMP) Deputy Commissioner (Media) Masudur Rahman said that the DB personnel conducted the drives at Uttra, Hazaribagh and Wari based on information and arrested them along with the arms and money.They are being interrogated at police custody in this connection.At least two cases were registered in this connection, the police official said.