Okla. Stat. tit. 15, § 15-503: Hotels, apartment hotels, inns - Guest rooms to have

suitable locks.

It shall be the duty of the proprietor, manager, or operator of

any hotel, apartment hotel, or inn to equip the doors of all guest

rooms in any hotel, apartment hotel or inn operated by him, with

suitable night latches, night chains, or bolts, so placed on the

inside of such doors, as to prevent such doors from being opened

from the outside by key or otherwise.