N.D. Cent. Code § 23-09-08: Bolts or locks to be supplied on doors of sleeping rooms

The doors of all rooms used for sleeping purposes in any lodging establishment within this state must be equipped with proper bolts or locks to permit the occupants of such rooms to lock or bolt the doors securely from within the rooms. The locks or bolts must be constructed in a manner that renders it impossible to unbolt or unlock the door from the outside with a key or otherwise, or to remove the key therefrom from the outside, while the room is bolted or locked from within. Any lodging establishment proprietor who fails to comply with this section is guilty of a class B misdemeanor.