W. Va. Code § 61-10-7: Presumption against hotelkeeper.

In a prosecution under the preceding section, if the gaming be proved, it shall be presumed it was permitted by the keeper of the hotel, unless it appear that he did not know of or suspect such gaming, or that he endeavored to prevent it, and gave information of it, with the names of the players, to the next circuit court of the county in which such gaming occurred, or to the prosecuting attorney thereof.