Offenders who may be in Naval custody while undergoing a sentence of imprisonment or detention shall, as far as possible, be subject to the following: -
(a) They shall not a allowed to communicate by letter with any person nor to receive any letter or visit without permission of the Commanding Officer and any letters written by or to them with such permission shall first be read by the Commanding officer of the ship, who shall use his discretion in Communicating or withholding their contents.
(b) Any visit allowed to them must take place in the presence of an officer or Master Chief Petty Officer or Chief Petty Officer.
(2) Such measures as are necessary for the proper enforcement of the provisions of clauses (a) and (b) of sub-regulation (1) shall be taken in Indian Naval Ships and no departure from the said provisions shall be made, save in exceptional circumstances, when the commanding Officer may act according to his discretion, reporting the circumstances to the Chief of the Naval Staff.