Ohio Rev. Code Ann. § 2923.12
(A) No person shall knowingly carry or have, concealed on the person's person or concealed ready at hand, any of the following:
(B) No person who has been issued a concealed handgun license shall do any of the following:
(C)
(1) This section does not apply to any of the following:
(D) It is an affirmative defense to a charge under division (A)(1) of this section of carrying or having control of a weapon other than a handgun and other than a dangerous ordnance that the actor was not otherwise prohibited by law from having the weapon and that any of the following applies:
(F)
(2) Except as provided in division (F)(6) of this section, if a person being arrested for a violation of division (A)(2) of this section promptly produces a valid concealed handgun license, and if at the time of the violation the person was not knowingly in a place described in division (B) of section 2923.126 of the Revised Code, the officer shall not arrest the person for a violation of that division. If the person is not able to promptly produce any concealed handgun license and if the person is not in a place described in that section, the officer may arrest the person for a violation of that division, and the offender shall be punished as follows:
(a) The offender shall be guilty of a minor misdemeanor if both of the following apply:
(b) The offender shall be guilty of a misdemeanor and shall be fined five hundred dollars if all of the following apply:
(6) If a person being arrested for a violation of division (A)(2) of this section is an active duty member of the armed forces of the United States and is carrying a valid military identification card and documentation of successful completion of firearms training that meets or exceeds the training requirements described in division (G)(1) of section 2923.125 of the Revised Code, and if at the time of the violation the person was not knowingly in a place described in division (B) of section 2923.126 of the Revised Code, the officer shall not arrest the person for a violation of that division. If the person is not able to promptly produce a valid military identification card and documentation of successful completion of firearms training that meets or exceeds the training requirements described in division (G)(1) of section 2923.125 of the Revised Code and if the person is not in a place described in division (B) of section 2923.126 of the Revised Code, the officer shall issue a citation and the offender shall be assessed a civil penalty of not more than five hundred dollars. The citation shall be automatically dismissed and the civil penalty shall not be assessed if both of the following apply:
(7) If a person being arrested for a violation of division (A)(2) of this section is knowingly in a place described in division (B)(5) of section 2923.126 of the Revised Code and is not authorized to carry a handgun or have a handgun concealed on the person's person or concealed ready at hand under that division, the penalty shall be as follows: