§ 608.17 DETENTION AND ARREST OF SHOPLIFTERS AND THOSE COMMITTING MOTION PICTURE PIRACY; PROTECTION OF INSTITUTIONAL PROPERTY.
   (b)   A merchant, or an employee or agent of a merchant, who has probable cause to believe that things offered for sale by a mercantile establishment have been unlawfully taken by a person, may, for the purposes set forth in subsection (d) below, detain the person in a reasonable manner for a reasonable length of time within the mercantile establishment or its immediate vicinity.
   (c)   Any officer, employee, or agent of a library, museum, or archival institution may, for the purposes set forth in subsection (d) below or for the purpose of conducting a reasonable investigation of a belief that the person has acted in a manner described in subsections (c)(1) and (2) below, detain a person in a reasonable manner for a reasonable length of time within, or in the immediate vicinity of, the library, museum, or archival institution, if the officer, employee or agent has probable cause to believe that the person has:
      (1)   Without privilege to do so, knowingly moved, defaced, damaged, destroyed or otherwise improperly tampered with property owned by or in the custody of the library, museum, or archival institution; or
      (2)   With purpose to deprive the library, museum, or archival institution of property owned by it or in its custody, knowingly obtained or exerted control over the property without the consent of the owner or person authorized to give consent, beyond the scope of the express or implied consent of the owner or person authorized to give consent, by deception, or by threat.
   (d)   An officer, agent, or employee of a library, museum, or archival institution pursuant to subsection (c) above or a merchant or an employee or agent of a merchant pursuant to subsection (b) above may detain another person for any of the following purposes:
      (1)   To recover the property that is the subject of the unlawful taking, criminal mischief, or theft;
      (2)   To cause an arrest to be made by a peace officer; or
      (3)   To obtain a warrant of arrest;
      (4)   To offer the person, if the person is suspected of the unlawful taking, criminal mischief, or theft and notwithstanding any other provision of this Code or the Ohio Revised Code, an opportunity to complete a pretrial diversion program and to inform the person of the other legal remedies available to the library, museum, archival institution, or merchant.
   (e)   The owner or lessee of a facility in which a motion picture is being shown, or the owner’s or lessee’s employee or agent, who has probable cause to believe that a person is or has been operating an audiovisual recording function of a device in violation of Ohio R.C. 2917.07 may, for the purpose of causing an arrest to be made by a peace officer or of obtaining an arrest warrant, detain the person in a reasonable manner for a reasonable length of time within the facility or its immediate vicinity.
   (f)   The officer, agent or employee of the library, museum, or archival institution, the merchant or an employee or agent of a merchant, or the owner, lessee, employee, or agent of the facility acting under subsections (b), (c) or (e) above 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.
   (g)   Any peace officer may arrest without a warrant any person that the officer has probable cause to believe has committed any act described in subsections (c)(1) or (2) above, that the officer has probable cause to believe has committed an unlawful taking in a mercantile establishment, or that the officer has reasonable cause to believe has committed an act prohibited by Ohio R.C. 2913.07. An arrest under this subsection shall be made within a reasonable time after the commission of the act or unlawful taking.
(ORC 2935.041)