OLYMPIA, Wash. (AP) — Following a mishandled investigation into the death of Manuel Ellis while in Tacoma police custody, Attorney General Bob Ferguson says his office will review at least 30 investigations of police use of deadly force to ensure a new state law was followed. Each incident was supposed to be investigated —independently, free of conflicts of interest and unnecessary secrecy about officers’ actions — under Initiative 940. Ellis died March 3 after Tacoma police encountered him allegedly bothering drivers. The Pierce County Sheriff’s Office handled the investigation but only recently said a deputy was present as police detained Ellis. That would be considered a conflict of interest under I-940, requiring the sheriff to step aside.