The magistrate, Erdoo Ter, remanded the accused at the Federal Maximum Correctional Centre, Makurdi, and adjourned the case till February 3, 2023, for further mention.
The exercise will be conducted from 6:00 a.m. to 6:00 p.m. daily between September 5 and 7.
Five people, including two police officers on duty, were among the dead.
The Bill was also amended to impose a fine of three million naira or imprisonment for three years or both on anyone who failed to surrender illegal firearms to relevant authorities.
The arrests were announced on Sunday.
