R.I. Gen. Laws § 11-19-8
In the trial of a complaint or indictment to which it may be relevant any lottery, policy, or pool ticket, certificate, slip, or check, manifold, or other policy or pool book or sheet, or memorandum of any pool or sale of pools, or of a bet or odds, or combination bet, or any other implement, apparatus, materials, or articles of a character commonly employed in or in connection with lotteries, policy-lotteries, or policy, the buying or selling of pools, or registering of bets, or other form of gaming not authorized by the Rhode Island state police shall be prima facie evidence of the existence and unlawful character of a lottery, policy-lottery, or game, pool or pools, bet, game, or hazard, or other form of gaming in which like articles are commonly used, and that the article has relation to it.
R.I. Gen. Laws § 11-19-8