law: 40. Offences relating to Coast Guard Courts.-
  Any person subject to this Act who commits any of the following offences, that is to say,-
  (a) being duly summoned or ordered to attend as a witness before a Coast Guard Court, wilfully or without reasonable excuse, makes default in attending; or 
  (b) refuses to take an oath or make an affirmation legally required by a Coast Guard Court to be taken or made; or
  (c) refuses to produce or deliver any document in his power or control legally required by a Coast Guard Court to be produced or delivered by him; or
  (d) refuses, when a witness, to answer any question which he is by law bound to answer; or
  (e) is guilty of contempt of a Coast Guard Court by using insulting or threatening language, or by causing any interruption or disturbance in the proceedings of such Court,
  shall, on conviction by a Coast Guard Court, be liable to suffer imprisonment for a term which may extend to three years or such less punishment as is in this Act mentioned.