Ohio Rev. Code § 737.18: General powers of village police officers.

The marshal shall be the peace officer of a village and the executive head, under the mayor, of the police force. The marshal, and the deputy marshals, policemen, or nightwatchmen under him shall have the powers conferred by law upon police officers in all villages of the state, and such other powers, not inconsistent with the nature of their offices, as are conferred by ordinance.

A marshal, deputy marshal, or police officer of a village may participate, as the director of an organized crime task force established under section 177.02 of the Revised Code or as a member of the investigatory staff of such a task force, in an investigation of organized criminal activity in any county or counties in this state under sections 177.01 to 177.03 of the Revised Code.