The Navy Act,1957
Section 123. Provisions relating to dissolution of courts-martial
(1) A court-martial assembled under this Act shall be dissolved-
(a) when the number of members comprising the court is after the commencement of a trial reduced below four;
(b) by the prolonged illness of the president, trial judge advocate or the accused ;
(c) by the death of the president or the trial judge advocate;
(d) on the making of a report under sub-section (2) of section 143.(2) Whenever a court-martial is dissolved by virtue of sub-section(1), the accused may be retried.