I'll just put this here:
Ohio Recording Law Summary: Ohio recording law stipulates that it is a one-party consent state. In Ohio, it is a criminal offense to use any device to record or share communications, whether they are wire, oral or electronic, without the consent of at least one person taking part in the...
However, Ohio law does make an exception in cases where the person or people communicating are doing so in an environment where they should not be under the expectation of privacy. Ohio Rev. Code Ann. § 2933.51.