(1) The owner or lessee of a motion picture theater, or the authorized agent or employee of such owner or lessee may request a person on his premises to place or keep in full view any audiovisual recording device or related item such person may have operated, or which the owner or lessee or authorized agent or employee of such owner or lessee has reason to believe he may have operated, in violation of the provisions of this chapter. No merchant shall be criminally or civilly liable on account of having made such a request.
(2)  The owner or lessee of a motion picture theater, or the authorized agent or employee of such owner or lessee, who has reason to believe that any audiovisual recording device or related item has been operated by a person in violation of this chapter and that he can recover such audiovisual recording device or related item by taking such a person into custody and detaining him may, for the purpose of attempting to effect such recovery or for the purpose of informing a peace officer of the circumstances of such detention, take the person into custody and detain him, in a reasonable manner and for a reasonable length of time.