Investigators said 40-year-old Phillip Ross of Springfield received a real check from the jail and used it to make the fake checks, cashing them at several banks.
Ross has been indicted on 36 counts of forgery, 6 counts of theft and one cout of engaging in a pattern or corrupt activity.
Detective Bryan Sullivan said,"The biggest victim in the Ross case would be us, The Clark County Sheriff's Office. They got into the jail inmate trust fund."
Deputies are also looking for 34-year-old James Savage of Springfield in connection with another fake check case. Savage was indicted this week on 63 counts of forgery, 8 counts of theft and one count of engaging in a pattern of corrupt activity.
Sullivan is accused of making dozens of fake checks using the names of local businesses and cashing them at area banks.
Investigators said the total damage is over $20,000.