Ohio Rev. Code § 109.09: Action on official bonds.

When so directed, the attorney general shall bring an action on the official bond of a delinquent officer, and shall also prosecute any officer for an offense against the revenue laws of the state that come to his knowledge. Such action may be brought by him in the court of common pleas of Franklin county, or of any county in which one or more defendants reside, or can be summoned.