Ohio Revised Code Title XLIX. Public Utilities § 4953.11

(A) An officer or agent of a union terminal company who has probable cause to believe that a person is a pickpocket, is a thief, has violated the public peace, has violated any rule or regulation posted as provided by section 4953.07 of the Revised Code, or has committed any crime or misdemeanor on the depot grounds may detain the person in a reasonable manner and for a reasonable length of time within the property of the union terminal company, for the purpose of recovering any property involved in the violation, causing an arrest to be made by a peace officer, or obtaining a warrant of arrest.

(B) An officer or agent of a union terminal company acting under division (A) of this section shall not search the person detained, search or seize any property belonging to the person detained without the person's consent, or use undue restraint upon the person detained.

(C) Any peace officer, as defined in section 2935.01 of the Revised Code, may arrest without a warrant any person who the officer has probable cause to believe is a pickpocket, is a thief, has violated any rule or regulation provided by section 4953.07 of the Revised Code that also is a violation of law, or has committed any crime or misdemeanor on the depot grounds and shall make the arrest within a reasonable time after the commission of the act or violation that is the basis of the arrest.