law: National Security Act, 1980
  11. Procedure of Advisory Boards
  (1) The Advisory Board shall, after considering
  
  the materials placed before it and, after calling for such further information
  
  as it may deem necessary from the appropriate Government or from any person
  
  called for the purpose through the appropriate Government or from the person
  
  concerned, and if, in any particular case, if considers it essential so to do
  
  or if the person concerned desires to be heard, after hearing him in person,
  
  submit its report to the appropriate Government within seven weeks from the
  
  date of detention of the person concerned.
  (2) The report of the Advisory Board shall
  
  specify in a separate part thereof the opinion of the Advisory Board as to
  
  whether or not there is sufficient cause for the detention of the person
  
  concerned.
  (3) When there is a difference of opinion
  
  among the members forming the Advisory Board, the opinion of the majority of
  
  such members shall be deemed to be the opinion of the Board.
  (4) Nothing in this section shall entitle any
  
  person against whom a detention order has been made to appear by any legal practitioner
  
  in any matter connected with the reference to the Advisory Board; and the
  
  proceedings of the Advisory Board and its report, excepting that part of the
  
  report in which the opinion of the Advisory Board is specified, shall be
  
  confidential