Regulations for the Navy Part IICentral Regulations · 1957
(1) Officers whose duty it may be attend as members of court-martial shall sit only in the confirmed rank they hold; but Commodores when not acting in conjunction with senior Captains shall sit as commodores otherwise as Captains only.
(2) The members of the court shall sit in order of seniority, the officer next senior to the president sitting on his right, the next senior on his left and so on.