Ohio Rev. Code § 1721.14
The trustees, directors, or other officers of a cemetery company or association, whether it is incorporated or unincorporated, and a board of township trustees having charge of township cemeteries, may appoint day and night watchmen for their grounds. All such watchmen, and all superintendents, gardeners, and agents of such company or association or of such board, who are stationed on the cemetery grounds may take and subscribe, before any judge of a county court or judge of a municipal court having jurisdiction in the township where the grounds are situated, an oath of office similar to the oath required by law of constables. Upon taking such oath, such watchmen, superintendents, gardeners, or agents shall have, within and adjacent to the cemetery grounds, all the powers of police officers.
R.C. §1721.14