Ohio Rev. Code § 2739.12: Newspaper reporters not required to reveal source of information.

No person engaged in the work of, or connected with, or employed by any newspaper or any press association for the purpose of gathering, procuring, compiling, editing, disseminating, or publishing news shall be required to disclose the source of any information procured or obtained by such person in the course of his employment, in any legal proceeding, trial, or investigation before any court, grand jury, petit jury, or any officer thereof, before the presiding officer of any tribunal, or his agent, or before any commission, department, division, or bureau of this state, or before any county or municipal body, officer or committee thereof.