A federal indictment says 40 people face charges in a methamphetamine ring that was run from at least two Indiana prisons with the help of corrections officers. An indictment unsealed Wednesday says that corrections officers smuggled cellphones and controlled substances into the prisons, and that at least three inmates are among those charged. Among them is the person thought to be the ringleader, who is serving time for murder and attempted murder. At least 17 people appeared in court on Wednesday in Indianapolis and were ordered held in custody. The F.B.I. said that several people had been arrested after 300 agents spread out across the state in “investigative activity.”