R.I. Gen. Laws § 30-13-55: Number of votes required.

(a) No person may be convicted of an offense, except by concurrence of two-thirds (⅔) of the members present at the time the vote is taken.

(b) All sentences shall be determined by the concurrence of two-thirds (⅔) of the members present at the time that the vote is taken.

(c) All other questions to be decided by the members of a general or special court-martial shall be determined by a majority vote. A tie vote on a challenge disqualifies the member challenged. A tie vote on a motion for a finding of not guilty or on a motion relating to the question of the accused’s sanity is a determination against the accused. A tie vote on any other question is a determination in favor of the accused.